Treated unfairly by Gym Company

My name is Tebogo Madiba I have a Gym contract with Gym Company which I want out. I'm told that I have to pay a cancellation, which I was never told about prior to joining.

I've spoken to them on numerous occasions without any success. They're standard fee was suppposed to be R99, they're deducting R200 instead. I want out of this, pleasehelp. My email **********