No issue with that. But why not buy Amex, Visa or Master Card gift cards through Cashback Site or something similar? That way you will have a regular credit card that you can use for anything and earn a little extra money through the purchase? Or you can buy a generic card at a local grocery store (like Safeway) that you can later turn in to almost anything. I just turned in some Walgreen's cards for Shell gas cards. These cards are becoming quite fungible.