Where Do I Enter a Visa Gift Card Online? When you get to the online payment processing portion of checkout, enter the gift card number, expiration date and Card Verification Number (CVN) into the fields you typically use for debit and credit card payments. Do not enter a Visa gift card number into the “gift card” field. The GiftCards.com Visa gift card is a “non-reloadable prepaid” card. Like a credit card, when you are ready to pay (or checkout online) use the Visa gift card like you would use any credit or debit card. Every time you make a purchase, that amount is automatically deducted from the card balance. Credit, Debit, Prepaid, and Gift Cards - learn which card is right for you. Visa offers a variety of cards that allow you enjoy fast, secure, and easy payments. Find Your Visa Card