Yea, unfortunately most of these players just won't pay attention to the chat. So, even when I ask to stall or even if I ask for a pawn to mate.. it won't happen. Just now I played a game where I saw a mate on my partner's board, threw away a queen to get him a rook for the mate
he didn't pay attention to the chat and made the wrong move.
I have been trying to play bughouse swiss tournaments, I would say 3/4 tournaments most of my partners just don't communicate or even respond to when I try to.
It is making it really just a luck thing for me to be able to advance my ELO. I was able to take my ELO from low 1000s to 1200 in one day when I found a good 1000 ELO player who would communicate and we played for 3 hours. But since then I have tried 3 tournaments and most of my games I am stuck with players who just won't talk. Problem in the tournament is that the very next match I will be teamed up with the same player. I have resorted to blocking non communicating players so I wont get matched with them again, but I don't want to do that.