I recently redeemed a $25 dollar iTunes card. I then proceeded to download some apps, Ambiance, LineRider, and Spore. I then went to iTunes Store from my iPod Touch, and it said I still had 24.45 on it. I rebooted, still said 24.45. Now I know that 3+10+1=14. This means that I had roughly 14 dollars left on my account. I tried to download a 9.99 album, it said insufficient credit. When I downloaded like 12 different songs, it worked fine. Not too bad of a bug, but it's interesting. Any theories?