username change
Did you by any chance changed your login by your email address, while your previous login was something else?
I had a FREE .Mac username, which Apple gave us with the purchase of a PowerBook, and lately they FORCED me to start logging in with my email address, which NEVER WAS the .mac account, BECAUSE THERE'S NO .MAC EMAIL, JUST A USERNAME
Now I'm charged for EVERY app I downloaded before.
They made ONE exeption, and terminated the communication, giving me the legal dept link.
I sent a SCREENSHOT of my two bills, showing same email, street address, name, etc
and they replied "you have two accounts".
Multiply that for all the free .mac usernames they gave away and didn't convert into a subscription purchase
and you'll get the picture of the rip off.