Boskruin gym dont care about customers

I took out a gym membership for myself and a friend at Boskruin gym .This contract was for myself and a friend. My friend only went once due to circumstances beyond her limit.The sales person nicknamed MO said if you cancell within 3 months ,you won't be charged any cancelation fees. I have proof of cancelation .I spoke to Aliea at reception and she said write your request on a piece of paper as that accountant is not at the gym.I did so on the 4th of March.I have proof of this.I was told by the accountant that I can't cancel my friends gym .The south African law says I can as I am paying for it. Well today they are still trying to debit my account which costs me R200 bank charges. Ricky Nduduzo refuses to acknowledge this dilemma. I will write to the obasman and go to the court. They are very quick to take your money