This glossary explains the words you meet when you buy gift cards, game keys, eSIMs and top-ups with crypto. Each entry gives a plain definition first, then says how the term shows up on KryptoMate: at checkout, on a product page or on your order page. It's written for buyers, not for developers.
Paying with crypto
Binance Pay
Binance Pay is a payment feature of the Binance exchange that lets you pay a merchant straight from your Binance account balance. You approve the payment in the Binance app, so there is no address to copy and no network to choose. For example, you scan a QR code at checkout, confirm in the app, and the payment is done.
On KryptoMate: Binance Pay is one of the exchange tiles at checkout. A method can add a fee, and any fee is shown in the order summary before you pay. See Binance Pay for the steps.
Confirmation
A confirmation is the blockchain's record that a transfer has been included in a block. Receivers usually wait for one or more confirmations before they treat a payment as final, because a transfer that was only just broadcast isn't settled yet. For example, a wallet may show "sent" seconds after you pay, while the receiver still shows "confirming".
On KryptoMate: after an On-Chain transfer is seen, the payment screen shows Payment detected · confirming. This usually takes 10–30 minutes, and you don't need to pay again. More in how to pay On-Chain.
Exchange pay
Exchange pay means paying from the balance of your exchange account through the exchange's own pay feature, instead of withdrawing coins to an address. The exchange moves the funds internally once you approve the request in its app. For example, someone who keeps USDT on an exchange can pay without first sending it to a personal wallet.
On KryptoMate: the exchange tiles are Binance Pay, Bybit Pay, KuCoin Pay, Gate Pay and Bitget. The methods offered for your order are the ones shown at checkout. A worked example is in how to pay with Binance Pay.
Gas fee
A gas fee is the fee a blockchain charges to process a transaction. Ethereum's documentation defines it as the amount of gas an operation uses multiplied by the price per unit of gas, and it is paid in the network's own coin: ETH on Ethereum, BNB on BNB Smart Chain, SOL on Solana. Fees rise when a network is busy. For example, sending USDT on BNB Smart Chain from your own wallet needs a little BNB.
On KryptoMate: gas and withdrawal fees are paid by you and aren't included in our prices; the On-Chain method itself adds no payment fee. See USDT networks compared.
Mate Wallet
The Mate Wallet is a US dollar balance that belongs to a KryptoMate account. It isn't a crypto wallet: it holds store credit that you spend on orders. You add funds by sending USDT or USDC, by redeeming a voucher, by redeeming points, or when a refund is credited to it. For example, you can keep a balance and pay small orders without making a transfer each time.
On KryptoMate: Mate Wallet appears as a payment option at checkout when you're signed in, and it can cover part of an order. Guests can't use it, and the balance can't be withdrawn. Details: what is the Mate Wallet?
On-Chain payment
An On-Chain payment is a crypto transfer recorded on a blockchain, sent from your own wallet or exchange account to an address. It is the opposite of an internal transfer inside one exchange. You choose the coin and the network, pay the network fee, and wait for the transfer to confirm. For example, sending USDT on Tron to a merchant's address is an On-Chain payment.
On KryptoMate: choose On-Chain · 200+ coins at checkout, pick a coin and its network, and send the exact amount to the address made for your order within 30 minutes. The method adds no payment fee. See On-Chain payments.
Payment window
A payment window is the time you have to complete a payment after it is created. The price in crypto is fixed for that period; when it ends, the address or request expires. For example, a checkout that shows a countdown of 30:00 is giving you a 30-minute window.
On KryptoMate: the window is 30 minutes, or 15 minutes with TON Connect and Tonkeeper, and the countdown is on the payment screen. A payment that arrives after the order was closed doesn't reopen it; see my payment window expired.
Stablecoin
A stablecoin is a crypto token designed to keep a steady value, usually one US dollar per token. USDT and USDC are two widely used examples. People pay with stablecoins because the amount doesn't swing between the moment they decide to buy and the moment the payment confirms. For example, 25 USDT is meant to be worth 25 US dollars today and tomorrow.
On KryptoMate: stablecoins carry a Stable tag in the On-Chain coin list. USDT, USDC, DAI, PYUSD, FDUSD and USDP are listed, each on its own set of networks. Start at pay with USDT.
TXID (transaction hash)
A TXID, or transaction hash, is the unique identifier a blockchain gives to a transfer once it has been sent. Anyone can look it up in a block explorer to see the sender, receiver, amount and status. You find it in your wallet's history or in your exchange's withdrawal record. It is created after you send, so it is not something you type in when paying.
On KryptoMate: support asks for the TXID, with your order number, whenever a payment needs to be traced: a short amount, a late payment or a wrong network. See what to send support.
Web3 wallet
A Web3 wallet is an app or device that holds the keys to your own crypto, so you approve every payment yourself instead of an exchange doing it for you. MetaMask, Trust Wallet and Phantom are examples. A payment request opens in the wallet, shows the amount and recipient, and waits for your approval.
On KryptoMate: under Web3 wallets at checkout you can choose MetaMask, Trust Wallet, Phantom, OKX Wallet and others, and pay in USDT or USDC on a network the tile lists. TON Connect and Tonkeeper pay in the TON coin. See paying with a Web3 wallet.
Networks and tokens
BEP-20
BEP-20 is the token standard of BNB Smart Chain: the common set of rules that tokens on that chain follow. BNB Chain derived it from Ethereum's ERC-20, and addresses use the same 0x format as Ethereum. Fees on BNB Smart Chain are paid in BNB. Exchanges often label the network "BSC" or "BEP20". For example, "USDT BEP-20" is USDT on BNB Smart Chain.
On KryptoMate: the coin list shows this network as BNB Smart Chain (BEP-20). USDT, USDC, FDUSD and BNB itself can be paid on it. Step by step: pay with USDT BEP-20.
ERC-20
ERC-20 is the token standard of Ethereum. It defines how a token contract works, so that every Ethereum wallet and exchange can handle any ERC-20 token the same way. Addresses start with 0x, and the network fee is paid in ETH. For example, USDC on Ethereum is an ERC-20 token.
On KryptoMate: the coin list shows the network as Ethereum (ERC-20). USDC, DAI and PYUSD are offered on it, but USDT on Ethereum isn't in the On-Chain list today; choose another USDT network from USDT networks compared.
Memo (destination tag)
A memo is an extra reference sent with a crypto transfer, next to the address, so that a receiver using one address for many customers can tell whose payment it is. On the XRP Ledger it is called a destination tag and is a whole number; on Stellar it is a memo; on TON, a comment. A transfer without a required memo arrives but can't be identified automatically.
On KryptoMate: coins that need one carry a Memo tag in the coin list (today XRP, XLM, LUNA and LUNC), and the payment screen shows a Memo / Tag block marked Required. See when a crypto payment needs a memo.
Network
A network, in crypto payments, is the blockchain a coin travels on. Many coins exist on several networks at once: USDT, for instance, is issued on Tron, BNB Smart Chain, Solana and others, and each version is a separate token with its own address format and fee coin. Sender and receiver must use the same network, or the transfer doesn't arrive where it is expected.
On KryptoMate: every On-Chain option is a coin plus a network, and the payment screen repeats the Network above the address. Other coins or networks can't be recovered; see I used the wrong network.
TON
TON, The Open Network, is a blockchain closely linked to the Telegram app. Its coin is named Gram on ton.org (it was long called Toncoin); our coin list and many wallets show the ticker TON. Addresses are 48 characters long and usually start with EQ or UQ. Tokens on TON are called jettons, and USDT is one of them.
On KryptoMate: you can pay in the TON coin with the TON Connect and Tonkeeper tiles (15-minute window), or send TON or USDT on TON through On-Chain (30 minutes). See TON payments, memo and comment.
TRC-20
TRC-20 is the token standard of the Tron blockchain. Tron's documentation defines it as a set of contract standards for issuing fungible tokens on Tron. USDT TRC-20 therefore means USDT on Tron. Network costs on Tron are measured in bandwidth and energy and paid with TRX. For example, an exchange withdrawal form that offers "USDT – TRC20" sends USDT over Tron.
On KryptoMate: the coin list shows this network as Tron (TRC-20), and USDT on it is one of the On-Chain options. The full walkthrough is in USDT TRC-20: what it is and how to pay.
TRC-20 address
A TRC-20 address is simply a Tron address: 34 characters, starting with the letter T. There is no special address or wallet for TRC-20 tokens; the same Tron address receives TRX and every TRC-20 token, including USDT. An address that starts with 0x is not a Tron address, which is a quick way to notice that a wallet is set to the wrong network.
On KryptoMate: when you pay with USDT on Tron, the payment screen shows a T address made for your order, with a Copy button and a QR code. See pay with Tron.
USDC
USDC is a US dollar stablecoin: one token is meant to be worth one dollar. Like USDT, it is issued on several blockchains, and USDC on one network can't be sent to an address on another. For example, USDC held in a Solana wallet is a different token from USDC held on Ethereum, although both are worth the same.
On KryptoMate: USDC is offered On-Chain on Ethereum, BNB Smart Chain, Solana, Polygon, Arbitrum, Optimism, Base, Avalanche C-Chain and Algorand, and through the Web3 wallet tiles. The networks for your order are the ones listed at checkout. See pay with USDC.
USDT
USDT, also called Tether, is a widely used US dollar stablecoin. It exists on many blockchains, and the network name is usually written after it: USDT TRC-20 on Tron, USDT BEP-20 on BNB Smart Chain, and so on. The value is the same everywhere; the address format, the fee coin and the cost of sending differ.
On KryptoMate: USDT is offered On-Chain on Tron, BNB Smart Chain, Solana, Polygon, Arbitrum, Avalanche C-Chain, Celo and TON. USDT on Ethereum isn't in that list today. See pay with USDT.
Gift cards and codes
Denomination
A denomination is the face value of a gift card: the amount of store credit it adds, in the card's own currency. Some brands sell fixed values only, such as 10, 25 or 50, and others let you enter an amount within a range. The denomination is what the recipient gets; the price you pay in crypto is worked out from it.
On KryptoMate: a gift card page asks you to Choose a value, or Choose your amount when the brand allows a free amount. Browse the brands under gift cards.
Gift card code
A gift card code is the string of letters and digits that carries a gift card's value. You enter it on the brand's website or app, and the value is added to your account there. Some cards also come with a PIN or a serial number. Anyone who has the code can use it, so treat it like cash.
On KryptoMate: the code is shown on your order page under Code, with Copy buttons, and the order email links back to it. Codes are shown for 90 days. See where to find your code.
Redeemable in
"Redeemable in" names the country or region whose accounts can use a gift card. Most gift cards are tied to one country's store and currency, so a card made for the United States normally can't be added to an account registered in Germany. Checking this line before buying is the main way to avoid a card you can't use.
On KryptoMate: each gift card page shows Redeemable in with the country, or Redeemable worldwide, and the Terms tab carries the brand's own conditions. A card bought for the wrong region by your own selection can't be refunded; see the Refund Policy.
Steam Wallet code
A Steam Wallet code is a code that adds funds to the wallet of a Steam account. Steam says its gift cards and wallet codes work like gift certificates that can be redeemed on Steam, and that the value is converted to the currency of your Steam Wallet when you redeem it. You must be signed in to a Steam account to redeem one.
On KryptoMate: Steam cards are sold by region and value on the Steam page, and the code is delivered to your order page. Redeem steps are in how to redeem a Steam gift card.
Game keys and regions
Activation
Activation is the step where you enter a game key on its platform, such as Steam, PlayStation, Xbox or Nintendo, and the game is added to your account. A key can be activated once. After that it is tied to the account and can't be moved or returned. Platform and region have to match your account for activation to succeed.
On KryptoMate: a game page has an Activation details tab when the product has specific steps. Keys that were activated or revealed aren't refunded under the Refund Policy. For Steam, see how to activate a Steam key.
CD key
A CD key is a code that unlocks a game or program. The name comes from the codes once printed inside CD cases; today the same thing is called a game key, product key or activation code and is delivered digitally. You enter it on the platform named for the product, and the game is added to your library there.
On KryptoMate: products listed as a key under Games are delivered as a code on your order page. Check Platform and Region in the details list first; the difference between keys, accounts and gifts is explained in Steam key vs Steam gift vs account.
DLC
DLC stands for downloadable content: extra content for a game, such as an expansion, new levels or a season pass. It is not the game itself. You normally need to own the base game on the same platform before the DLC works.
On KryptoMate: the details list on a game page shows Product type, for example Base game or DLC, and the catalogue can be filtered by it. Read it before paying so you don't buy an add-on for a game you don't have. Browse Games.
EU key
An EU key is a game key made for accounts in Europe. Which countries count as "Europe" is decided by the publisher and differs from game to game: some keys cover the European Union only, others a wider list. A key labelled EU may fail to activate on an account registered elsewhere.
On KryptoMate: the label that applies is the Region shown on the product page, and when a key has country limits the page lists them under Can only be activated in or Cannot be activated in. See game key regions: Global, ROW and EU.
Global key
A global key is a game key sold without a regional restriction: it is meant to activate on accounts in any country where the platform sells the game. "Region free" and "worldwide" are used for the same idea. Sellers and publishers don't all use the word identically, so the country list on the product page matters more than the label.
On KryptoMate: a game page shows Worldwide under Region when the catalogue lists no regional limit, and the line Can be activated in repeats it in the purchase panel. How to check: check a game key's region lock.
Pre-order key
A pre-order key is a key for a game that hasn't been released yet. You pay before launch, and the game can be played only once the publisher releases it. Pre-orders sometimes include bonus content set by the publisher. Because nothing can be activated before release, check the release date and platform before you buy.
On KryptoMate: an unreleased game shows a Pre-order tag with the time until release, its button reads Pre-order, and the Delivery line says Pre-order delivery instead of the usual email delivery. Pre-orders have their own shelf under Games.
Region lock
A region lock is a restriction that lets a key or gift card be used only on accounts in certain countries. Publishers use it because prices differ between markets. A locked key entered on an account outside its region is rejected, or the game can't be started there. For example, a key locked to Latin America won't activate on an account set to France.
On KryptoMate: game pages show Region, and for keys with country limits a line such as Cannot be activated in with View list. Purchases of region-locked products despite the page's warning aren't refunded. See how to check platform and region.
ROW key
ROW stands for "rest of the world". A ROW key is made for countries outside the regions that have their own version of the game, which often means outside Europe or outside a few named markets. The exact list of excluded countries is set by the publisher and varies by game, so "ROW" alone doesn't tell you whether your country is covered.
On KryptoMate: rely on the Region shown on the product page and on the country list behind View list, not on the abbreviation. Background and examples are in game key regions: Global, ROW and EU.
eSIM and mobile top-up
Airtime
Airtime is prepaid credit on a mobile number. The operator deducts calls, texts and data from it, or the user converts it into a bundle. Sending airtime to someone else's prepaid number, including a number in another country, is what a mobile top-up does. For example, you can add credit to a relative's phone abroad with only their number.
On KryptoMate: on the mobile top-up page you choose the country, enter the number and pick an amount; each value shows They receive and You pay. A top-up sent to a wrong number can't be reversed, so check it.
APN
An APN, or access point name, is the setting that tells a phone which gateway to use for mobile data on a given SIM or eSIM. Most of the time it is set automatically. When it isn't, mobile data doesn't work until the right APN is entered in the SIM's settings.
On KryptoMate: after you install an eSIM, the order page either says the APN is set automatically or shows Set this eSIM's APN to with the value to enter. Steps are in how to install your eSIM.
Data bundle
A data bundle is a fixed amount of mobile data, sometimes with minutes or texts, that an operator sells for a set number of days. Unlike plain airtime, it is used only for what the bundle covers and expires when its period ends. For example, 5 GB valid for 30 days is a data bundle.
On KryptoMate: a mobile top-up can add credit or a data bundle to a prepaid number, depending on what the operator offers for that country. Each option shows what the number receives before you pay. See how to send a mobile top-up.
eSIM
An eSIM is a SIM built into a phone. Instead of inserting a plastic card, you install a mobile plan digitally, and it works next to your normal SIM on phones that support dual SIM. Travellers use eSIMs to get mobile data abroad without roaming on their home plan. The phone must support eSIM and be carrier-unlocked.
On KryptoMate: an eSIM is a prepaid data plan for a country, a region or the world, covering 200+ countries. It's delivered to your order page with a QR code and install buttons; delivery is usually instant, but it might take 0–24 hours in rare cases.
ICCID
An ICCID is the serial number of a SIM or eSIM profile. It identifies the SIM itself, not a phone number, and operators use it to find a specific plan. On a phone it's listed in the SIM's details in the settings. For example, when two eSIMs are installed, their ICCIDs tell them apart.
On KryptoMate: your order page and the eSIM's details under My eSIMs show the ICCID, and a top-up names the eSIM by its last digits so you can check it's the right one. Support may ask for it. See check your eSIM's data and expiry.
Player ID
A player ID is the identifier of a game account, shown inside the game, usually on the profile screen. For most games it is a number, not the in-game name, and some games add a server or zone. Direct game top-ups are sent to this ID, so no password is ever needed.
On KryptoMate: on a game top-up page you enter the ID under Your account, and the page reminds you to Check the ID is yours. A top-up goes to the ID you enter and can't be reversed. See buying a game top-up with your player ID.
QR code (eSIM)
An eSIM QR code is a square code that holds the details a phone needs to download an eSIM plan. You scan it with the phone that will use the eSIM, from another screen, and the phone's eSIM setup starts. The code installs once; an eSIM that has been removed usually can't be installed again from the same code.
On KryptoMate: the order page shows the QR code under Install your eSIM, next to Install on iPhone and Install on Android buttons and the details for manual entry. See how to install your eSIM.
Roaming
Roaming is using a SIM on a mobile network other than its home network, typically abroad. Home carriers may charge extra for it. A travel eSIM also connects through partner networks at the destination, which is why some plans need the phone's Data Roaming switch turned on for that eSIM, while roaming stays off for the normal SIM.
On KryptoMate: if your eSIM needs it, a note on the order page tells you to turn on Data Roaming for that eSIM. See using your eSIM abroad.
Top-up (direct)
A direct top-up sends credit straight to an account, with no code to redeem. For a phone, the credit goes to the mobile number; for a game, in-game currency goes to the player ID. It is the opposite of a voucher or PIN, which you receive and enter yourself.
On KryptoMate: mobile top-ups go to the number you enter and game top-ups to the player ID, and the order page shows Delivered when it's done. Values tagged PIN code are vouchers instead. Card payment isn't available for top-ups.
Orders and delivery
Claim
To claim an item is to press a button that reveals or issues it. Some digital goods aren't printed on the order straight away: the buyer confirms once, and the code or a secure link is then released. This keeps a code hidden until the person who should have it asks for it.
On KryptoMate: some gift cards show Ready to claim on the order page. Select Claim your gift card (or Claim your code) and open the link or copy the code that appears. Treat a claim link like cash. See what is a claim link?
Guest checkout
Guest checkout means buying without creating an account. The shop asks only for what it needs to deliver the order and sends a link by email instead of storing the order in a profile. The trade-off is that the email link is your only way back to the order.
On KryptoMate: guests need only an email address. The page you land on after paying is your private order page, and the order email links to it; anyone with the link can see the codes, so don't share it. See buying as a guest.
Refund to wallet
A refund to wallet is a refund paid as store balance instead of being sent back to the original payment method. It is quicker, because nothing has to cross a blockchain or a card network, but the money stays with the shop as credit for later orders.
On KryptoMate: an approved refund goes to the original payment method by default; with an account it can be credited to your Mate Wallet instead. Refunds are usually completed within 0–24 hours once approved, and whether one is due is decided under the Refund Policy. Guests need an account to receive it this way.
Underpayment
An underpayment is a crypto payment that arrives smaller than the amount due. The usual cause is an exchange taking its withdrawal fee out of the amount sent. For example, you withdraw exactly 20 USDT, the exchange keeps 1 USDT as its fee, and only 19 USDT reaches the address.
On KryptoMate: the payment screen shows Partly paid · send the rest and nothing is delivered yet. While the countdown runs, send the difference to the same address on the same network. Otherwise contact support with your TXID. See I sent less than the amount due.
Last checked: 11 Oct 2026. Payment options and products change; the checkout and each product page show what applies to your order.
Official pages the definitions were checked against
- developers.tron.network/docs/trc20-protocol-interface
- developers.tron.network/docs/account
- developers.tron.network/docs/resource-model
- docs.bnbchain.org/bnb-smart-chain/overview/
- github.com/bnb-chain/BEPs/blob/master/BEPs/BEP20.md
- ethereum.org/en/developers/docs/standards/tokens/erc-20/
- ethereum.org/en/developers/docs/gas/
- solana.com/docs/core/fees
- docs.ton.org/payments/toncoin
- ton.org/en/toncoin
- docs.ton.org/v3/documentation/smart-contracts/addresses/address-formats
- xrpl.org/docs/concepts/transactions/source-and-destination-tags
- store.steampowered.com/account/redeemwalletcode
See the terms in use
The guides walk through a purchase step by step; the help center answers questions about orders, payments, delivery and refunds.