How to redeem a gift card
After you have chosen the items you wish to purchase, click on VIEW CART, then click on PAY BY CREDIT CARD (you will not be paying by credit card unless your purchase exceeds the value of the gift).
Step 1 will ask for your shipping info (fill that in)
Step 2 will ask for your delivery method (you don't need to do anything here)
Step 3 will ask for payment and you will see a box to check that says REDEEM GIFT CARD, click that box and enter the card number and hit "APPLY".