I wonder if anyone else has this problem? I had changed my credit card to a new one on my Microsoft Account and everything went good. I then went to purchase some songs on my phone and it's now saying that there is No Credit Card on file, I need to add one. So I entered the card info again on my phone and it says that card is already on file. WHAT? I tried a different card number and the same thing happened. So now I can no longer purchase songs on my phone as my credit card info isn't showing up, help please.