General questions and discussions.

Hello! I have a question regarding unethical behavior in the game. Perhaps I posted in the wrong topic, but you can redirect me to a more suitable discussion. I don't play in tournaments; I just play games in the online lobby with live players. I would like to complain about one player: papka, with a rating of 516. The reason: leaving the game without acknowledging defeat or continuing it. Also, he probably blocked me so I couldn't write to him. I have saves if needed. My in-game nickname is buk. Also, I would like to make a suggestion regarding the online lobby. In which topic could I do that?