blast fitness in mesquite TX my child hurt in their care said they cancelled my contract but didn't not sent me to collections mesquite Texas

In March of 2014 I got a membership with blast fitness in mesquite tx and I was excited about it the very first day I went I put my 2 year old in the day care center of the gym and a hour later when I picked her up she had a mark on her face I asked the care taker what happen she said she didn't know she jut started to cry but nothing happen to her I thought maybe she fell and left the next week she had went and when I picked her up she had a hand mark on her arm like someone grabbed her or slapped her and I asked this time she said she didn't know and I said that's it and went to the front and they cancelled the membership and then today July 15 and get a letter in collections they never canceled my membership. Watch out for this company they are scammers the manager says that girl no longer works there and there's noting I can do but I will be filing a law suite I'm hiring a lawyer tomorrow I'm not playing this game with them they will pay more then my membership