Something doesn't sound right here.
You didn't know that glitching the elevator is illegal, but you know what you did wrong without a warning.
Thats confusing so I'll try and make more sense of it.
You glitched the elevator. Nobody told you that this was wrong/against the rules and you recieved a ban without warning. How did you know that it was illegal without a warning? You must have known ahead of time. If you were told this is why you were being banned, how did you not get the admin's name?