Didn't end up using your code? You can find all of your rewards codes under Rewards History! Check out the Step-by-Step guide to learn how.
Click the account icon in the top right corner of your screen and sign in if needed.
Enter your information, and click Sign In.
A popup will appear with your rewards history. If you're able to see your rewards code, it's still valid to use on future orders. If your code has been approved, it's already been used and is no longer a valid discount.