Gym owner took yearly fee denied later to give basic facility.

Given yearly fee for gym of me and my brother. The gym is an air conditioned gym they said in starting that they will provide that facility. But now they dont on AC saying that they are getting huge electricity bill so that they cant on it. I asked them and the owner yelled at me infront of others in gym. Even their traidmill is broken. Once i was in lift and light was gone for 10 mins. I tried to press alarm but even that dint worked. After 5 calls the owner rescued me. What can i do.