Take it up with your local moderators. If they think you should be banned I'm sure they'll say something.
Dear moderator, I really appreciate your work! Moderators of Russian chat can not remove the lock or cut it in this they need the help of a global moderator or administrator, so they sent me to you
What he is saying is that they (your local mod) must PM a Global Mod and ask for your ban to be lifted, you cannot.
So apparently they do not want your ban lifted, as they did not make the request for you.
This. If they believe you should have a second chance then get them to PM me or someone else and state their/your case. I can't speak Russian nor do I know the full circumstances behind your ban so unless I get input from them you should remain banned.