Members do sign a waiver of release when they sign up. It is always important to know the training background on the person instructing the exercise.
In regards to cancellations or freezes it is so vital to get everything in writing. Then there is no here-say regarding a verbal conversation. Every agreement is different so make sure to look over yours with regards to freezing/cancellations and medical situations. Also if you are not able to handle this properly on a location basis then call Anytime Fitness Corporate to speak with them directly.
They may be able to reach out to the owners directly, or at least give a suggestion on how to resolve the situation.
Best of luck.
Product or Service Mentioned: Anytime Fitness Membership.
Reason of review: Good customer service.