You know at time I have faced the same adversities from the enemy with Dance Ministry. What I had to do was go into prayer and fast and seek God. He directed me to have a meeting with the parents with the pastors approval on everything I gave the dancers and the parents. I had a girl to go as far as punishing by hitting another girl. I had to let them know that none of them had children and constantly give them scriptures to back up everything I told them. I also had to tell them that this was not for show but to minister. Just stay in prayer and sit the girls down and talk to them and let them know the expectations you have with their parents. Pray about Saturday and if God says no, then no it is.