A few days ago, I wanted to purchase Modern Warfare's Stimulus Package. However, when it came to fill out my billing information, I got an error message stating that my credit card information was not valid. So I double checked everything... didn't miss anything or do any mistake. Anyways, I thought I'd do a little research on the web and it seems that it is a fairly common problem. Not entirely sure if it's Sony's or not... but I know that my credit card works perfectly fine everywhere else, in stores and online (I do quite a lot of purchases online). Most people said that they had to write the information exactly as it is shown on their credit card statment. For instance, if your name and address are all capitalized, you should do the same when filling out your billing info. I checked on mine (I do all my banking from the web) and from what I could see, every letter was capitalized. So I tried filling out my billing info again, but still no luck. I haven't called Sony yet... I think I might just forget it. Did this ever happen to anyone? And if so, how did you fix this problem? Thanks for any help... and sorry for such a long post.