Cell c call centres are the worst

I have the worst experience trying to cancel my Cell c contract. I was called for an upgrade and I told the consultant last year I do not want an upgrade I want to cancel. I noticed on my bank statement that they have been debiting. I have gone to cell c in Somerset Mall over a weekend they said to me they can't cancel because the call centre is closed on a weekend. I work during the week and I've tried calling the call centre. You get through to customer care they do security and then I get transfered to retention. The consultant tells me I am not able to confirm the contract number after confirming an address and personal details and this resulting in not being able to cancel. I called again where I get transfered to retention and I am told I need to change my details in store to cancel. My initial request was to cancel after being called for an upgrade! Why do I need to do that? This is rediculous. Your not allowed to accpet funds from a account after it was suppose to be cancelled!The consultants are rude. I am going report this matter to the ombudsman and I've sent a request to the independent communications and authority of South Africa.