If you have a gift code and it's going to expire before you have a chance to redeem it, you can turn your gift code into account credits:
- Visit https://donorschoose.org/credits
- Purchase account credits for the value of the gift codes that you have
- At checkout, use the gift codes as the payment method
Later on, you'll be able to extend those account credits right from your teacher account (through the Private Info tab) as they approach expiration.