Short, precise definitions of virtual card, ad payment and crypto top-up terms — so you can understand BIN, 3-D Secure, TRC-20 and the rest in a minute.
A virtual card (Virtual Credit Card, VCC) is a payment card with no plastic: the number, expiry date and CVC are issued digitally and work anywhere Visa or Mastercard is accepted online. It is convenient for ads, subscriptions and online purchases, with a separate spending limit per card.
A BIN (Bank Identification Number) is the first 6–8 digits of a card number. It identifies the issuing bank, the payment network and the card type. How an ad platform or store accepts a payment depends on the BIN, so different BINs are chosen for different tasks.
3-D Secure is a protocol for extra online-payment confirmation (Verified by Visa, Mastercard Identity Check). It adds a cardholder verification step, usually a one-time code, and reduces the share of declined or disputed transactions.
TRC-20 is a token standard on the TRON blockchain. USDT-TRC20 is a US-dollar stablecoin on that network with low fees and fast confirmation; it is used to top up a single USD balance at 1 USDT = 1 USD.
An MCC (Merchant Category Code) is a four-digit merchant category code. Payment networks and platforms use it to classify a transaction (advertising, subscriptions, digital goods, etc.), which affects how a payment is accepted.
Threshold billing is an ad-payment model, for example in Google Ads: the system charges the linked card when spending reaches a threshold or at the end of a period, rather than on prepayment. It requires a card with enough available limit at the moment of charge.
Media buying is purchasing advertising traffic at scale on platforms such as Facebook, Google Ads and TikTok. Teams need many cards, separate budgets per account and a single balance to scale campaigns quickly.
A chargeback is a forced payment reversal initiated by the cardholder's bank when a transaction is disputed. In online payments it is a buyer-protection mechanism, separate from a refund issued by the merchant.
AVS (Address Verification System) checks the billing address entered at payment against the address on the card record. It is part of anti-fraud screening: a mismatch can lead to a decline, so it is important to enter the card's correct billing details.
An issuer is the organization that issues a payment card. It determines the BIN, the available currencies, the limits and the authorization rules for transactions on the card.