A gym contract from Hell

Since the end of February I've been trying to cancel the membership. In march I paid the the 30% cancelation fee which was about R310. Few days ago in April I received an sms stating my cancelation application has failed and I'm needed to pay R209. I've been at the gym multiple times but Im not receiving any help, I requested a meeting with the manager but he is never available at the gym. Really this a gym contact from Hell, I never experienced this with other gyms only this one. I would be very careful joining this gym run by ****mers. On march they debited for march and this means even on April they will do the same. You cant reverse or cancel the debit order until they cancel it on their side. Mosa