Use your Amazon.com Gift Card towards Clothes, Food, Books, Electronics, Music, and more. The Amazon.com website is the place to find and discover almost anything you want to buy online at a great price.
Amazon's anti-fraud process locks cards and accounts if they suspect their terms are broken, the most common reason is being outside of the USA and/or using a VPN, but there are others like: reselling/dropshipping, adding a gift card on a brand new account with no other payment methods added, adding excessive amount of high denomination gift cards in a short time period, and others.
After you receive your Amazon gift card code, you'll need to login to your Amazon account. Click "Apply a Gift Card to Your Account." Next, you'll need to enter your Amazon gift card code and click "Apply to your balance".