Open alpha testing of the 5.0 HD mod (online lobby).

Hello! I have a question regarding unethical behavior in the game. Perhaps I'm not posting in the right thread, but you can redirect me to a more appropriate discussion. 

I don't play in tournaments, just games in the online lobby with live players. I'd like to complain about one player: papka with a rating of 516 (now 522). Reason: leaving the game without admitting defeat or continuing it. When I write to him in chat, he simply ignores my messages. I have saves if needed. My in-game nickname: buk