That's because bans don't get overturned unless there has been some sort of mistake. Saying sorry and promising not to do it again will not work. Stop wasting your time and forget about it.
OP must do zero reading here--at least not in Meta--because he'd know those excuses and promises don't ever work when you get a ban.
I second Vod's opinion here, though luckily for OP we're not having a referendum, nor is bitcointalk a democracy.
Unfortunately for him, once you're banned there isn't much you can say to reverse that decision. Good riddance, I say.