Gym company *****

My friend and I joined the Gym company in Boskruin. I paid for my friend. We were told we could take out a platinum subscription but only have to pay for a normal subscription and that we could down grade if we so desire within the first 3 months. I asked at reception how do I downgrade and that my friend won't be coming to gym as she has moved away ,therefore cancell her membership. The receptionist said write all this info on a piece of paper and she will hand it in.Well she did nothing. I have proof of the receptionists name and a picture of the note I handed in. Today they debit my account full amount. The accounts person Dimakatso Mashigo said I can't cancel my friends gym. The SA law says I can. Yes, in South Africa, you can cancel the gym membership payments for your friend, Every month they gym company tries to debit my account and costs me bank charges that they are responsible for . I have asked them repeatable, to sort out this dilemma. They just ignor my request. I will now take this up at a higher level