I agree with farmergirl. Go to the principal. The principal is ultimately responsible for the behaviors of employees of the school. If the principal does not listen, go further up the chair of command (the district). Keep going until you get heard. I also agree with getting other parents involved. Numbers can do what sadly one or two parents can not. Also know, that if your daughter wants to continue playing and is going to college, (but doesn't want to play competitively in college) her school might have an intramural team she could join to keep playing. If she isn't going to college, she could look and see if there are any adult leagues in your area. This is of course if she wanted to continue. Good luck and keep us updated.