I'm having a problem on my girlfriend moment phone in the market place. I recently bought a app but the credit card I used didn't have money on it. So the the app downloaded but it said it was unsusessful. So I got a refund. But now I'm trying to download the app but it keeps saying invaild credit card so try another one. But I don't want to use a credit card anymore. My girlfriend wants it to just be added on her sprint bill. That used to be a option but I can't get to it anymore. It just says use a new credit card. So what should I do ? How do i just get it added to the bill ?