I don't think a perm mute should have been handed out, but I do agree with you being muted. Personally I think it should be a reduced to a certain amount of days and such. This is all depends on the admin and big man. Your attitude is quite poor, with you constantly arguing with someone trying to help you. You remind me as the type of person who would make an excuse for everything.
As stated above the mute should be shortened to a couple days or such, considering his history.