If you have a coupon code you'd like to redeem, just enter it at checkout.
We send out our gift cards through emails. Just click the "Redeem" button on the gift card email and enter the gift card code to receive credits on your account. If you've received a gift card and you do not have an account with campusprotein.com, sign up for an account with the email address that received the gift card email. The credits will then apply to your new account.