Similar to a prepaid debit card, a Visa gift card cannot be reloaded. It is the ideal substitute for currency. It can be used anywhere that accepts Visa cards. These gift cards are available from banks and other merchants. The Visa Gift Card you get will have a predetermined PIN (personal identification number). To make purchases over the phone or online, you must enter this PIN. Simply show your Visa Gift Card when making a purchase and sign the receipt to use it at a store.


Source: https://www.accountiod.com/how-to-use-visa-gift-card-on-amazon/