To use your gift card, place the resources you would like to purchase in your shopping cart. When you're ready to check out, click "Cart" on the top right of the page.
Then, click "Use a gift card" located under the order summary.
Enter your code and click the “Apply Gift Card” button.
Be sure to hang on to your code if you're not making a purchase that totals the whole amount of the gift card. You'll be able to enter that same code again for other purchases until you reach the total gift amount.