If autoban was off and you think you cant Win , leave the game.
Mortred is a hard late game carry, with so much free gold he can Easily decide the game. It is not by any standards a Supporting hero, or it can be used as a supporting hero any way you play it. Mortred is a definition of a Carry hero, even in 2010.
In a ladder game , if you buy 100 sentry's to make boobs is bannable, it is not harmless fun.
You ban will not be removed, you IP will be checked since i want to see how much did this harmless fun influeced game in your past.