There's a very big chance you had your cheats on, though you did not use them. The system can automatically detect and punish hackers. You would first have been given a kick for hacking, afterwards you must have rejoined and been banned.

There's a very big chance you had your cheats on, though you did not use them. The system can automatically detect and punish hackers. You would first have been given a kick for hacking, afterwards you must have rejoined and been banned.