Had a weird one tonight.
Playing on desktop. Won a head-to-head matchup in the Multiplayer Head-to-Head Chelsea room. Then, when I attempted to go in and play again, it only showed me as 'waiting for opponent', but never found me an opponent. When I cancelled out, I was out the 500 coin entry fee. This happened again two more times to the point where I'm left with 109 coins.
I closed out of the application, opened up again and it showed a "round" that I had apparently forfeited that it never put me into.
Computer did a Windows Update earlier today, so maybe that has something to do with it. But yeah, frustrating to lose 1500 coins, I think, without having the chance to get them back.