Banned because i specify my public wallet on the forum where it is asked for a TS for the Bounty? Can I somehow get unbanned?
Banned because you are using an account while you are permanently banned from the forum.
There isn't a single chance you are getting unbanned.
It is clear that I created a new account. And how should I be? what to do if my letter is not answered throughout the year. I have to forget about this forum and stop doing bounty campaigns because someone banned me for no reason?
Yes.
Just tell me what to do if my letter is not answered. How can I continue to do what I do?
You can do literally
nothing. You are banned and that's it.