How do I activate my Amazon Prime video code?

What can I do to determine what is the amount for the balance of my Amazon gift card? The most efficient method to check the amount of your Amazon gift card balance is to do so on your computer. Log in to your account and then go to the To determine to see the Amazon Gift card balance, you can insert the code for the gift card into the box, after that click on the "Check" button in order to see the balance