Gym company ****mers

I have received bad service and false advertising from gym company in the east rand east point. When I signed at the gym I had asked what need to happen if I want to cancel, I was told I need to let the gym know a month in advance. When its time to cancel I'm now told a different story that I will be billed for 3 months before cancelation. Please stay out of gym company they are krookz.