Pure Fitness Impossible to cancel contract. Stay away!! Tempe, Arizona

My husband and son joined Pure Fitness. After 9 months my husband called to cancel membership. They wouldn't take cancellation over the phone. He went in. They tried to strong arm him into continuing. He did not. They wouldn't cancel my son's, even though it was being charged to our credit card, until he came in a told them he wanted to cancel. He did. They never stopped charging him and 3 months later we called about it and they said he had to sign a cancellation agreement. He went in again. Filled it out and signed it. It is clearly labeled cancellation agreement. He listed all the reasons he was canceling. The place where he was shown to sign it says he has connected with an Employee and advised to the benefits,,etc., etc., sign here, which he did. It is buried in this paragraph that they say he is continuing his membership! They continued to charge him (me, actually) for another year and a half. THis form titled CANCELLATION AGREEMENT IS CLEARLY meant to be MISLEADING!! THey refuse to give us a refund. Needless to say, my son has only been there in the last year and a half to cancel it