My CD-key is closed, it says so when i enter the game. But i want my account back because i didnt do anything to my account. This is why i am mad, i want it back. I didnt do anything and you can't just punish people who didn't do anything.
As Blizzard has officially stated: all account bans are final. There is no way to get it back.
You are mad at the wrong people. Talk to the person who modified your installation.