Thomas is correct. The developer is probably the best place to go for questions like this.
That said, I had a similar issue with Draw Something and I had to delete the game between my friend and I and start over with her.
Instead of selecting the name, which enters the game, swipe from left to right over the name which brings up the delete option. Once deleted, add them as a player again. It was the only way we could play again after days of drawings that went no where. Of course our game count started over, but at least we were able to play again. (We didn't loose any coins)