Ah, because of the backlog, your punishment took until now to become official. However, based on both the grammar and tone of your original post, as well as the intentional AFK (the most vicious of Tribunal crimes - Assisting Enemy Team), I have little sympathy for you. Just because it happened a month ago does not excuse the behavior. If I were to cheat in a card game on camera, and it was only to become uncovered a month later, does that excuse my behavior? Would that remove my responsibility for the actions?
No, of course not. Just because your offense took place a month ago doesn't mean it wasn't a punishable offense. To couple with this, because it is a Time Ban, you have been warned for such behavior in the past. So your repeated violations have resulted in your temporary suspension.