I like that...cheap and safe, huh? if you mean those credit card gift cards, you cant use them, as thwy dont have the security features they need to process it. You can use them. Some can't be used because they don't allow reoccurring payments, but others (like my Visa Gift Card) can be used. The only difference between mine and what wakka said was that mine had a set amount. I don't know if the "rechargeable" ones can be used.