Enforced membership fee for a canceled contract!

It would be great if the wa an option of no star as this company deserves none. I joined the gym pre covid and canceled my membership on the 21st of August. I was told that I will have to pay a cancellation fee which I was not informed of on the commencement of the contract. Prosper at Randfontein said he will escalate the matter and I received no feedback from him. Today they had the audacity to institute a the debit order on my bank account and when communicating with the same Prosper I was given a feeble response and a "customer service" that doesn't work. A membership of a gym contract that i canceled is being enforced and this is nothing but *** light Robert.