Answered by Mukesh
A digital gift card is a code that holds a set value with a particular brand, delivered to you electronically rather than as a physical card. You buy it on the site, and once the order is complete the card and its code are made available to you so you can use or share it.
To redeem it, you enter the code on the brand's own website or app, usually at the payment step, and the value is applied to your purchase. Because it is digital, there is nothing to post and nothing to lose in a drawer, which is part of why these cards are so convenient for gifting.
Each brand sets its own rules about where and how its card can be used, so it is worth reading the short terms shown with the card before you buy. That way the person receiving it can spend it exactly where they expect, with no confusion at the till.