Please be sure to create an account with us. Make sure to be signed in to your account so that the items in your cart saves and to use the coupon code and or gift certificate. You will need to use the full amount given for the code or certificate to be valid. If you come up with a warning error please be sure that you are at or over a tad over the gift certificate amount. The programming in our store does not allow for negative or zero (0.00) balances in the cart. If you have tried all mentioned above and can not get the codes to work please don't hesitate to email us at email@example.com.