That's a real BS move.
If they are going to bar you from making certain types of bets and winning, they should proactively take those bets off the board. If they were smart, they probably wouldn't want to lose the rest of your action anyway.
I've had that done to me elsewhere. I didn't get barred though. They just took a bet off the board going forward. The funniest thing is that after they took it off the board, the following year they put it back up. I made one bet, cashed, and they took it off the board again.
