ok, so i want to buy an iphone 3gs. for my birthday i asked my family to get me gift cards. all pitching in they couldn't get me a 300$ gift card so they all gave me separate cards ranging from 25$-50$. i went into the AT&T store and they couldn't use them to order a phone for me. They wouldn't let me use the gift cards and my credit card at the same time. I know at the Apple store (online) you can add as many cards as you want and when the balance runs out then you can use a credit card. is there a way to use all my gift cards for an iphone online and then put the rest on my credit card. right now the only way i see how to accomplish this task is to buy an iphone 3gs in store (which isn't going to happen because they are all still out of stock). also i can't combine or add to the cards. any suggestions.