How do I use my gift cert. on SD website?

I got a gift certificate for Suicide Doors anyone know how to use it on the site? I went to checkout and there was no where to put in the certificate number, just the paypal and credit card one. Thanks in advance.

ya i gave my bro one for cmas. how do u use em?

ever try calling them?

phones always busy

you cant use em on the site you have to call in and give em the gift certificate number