Vodacom not Cancelling Contract as requested

I’m struggeling to cancel my Vodacom contract from September 2020

I phone Vodacom Cancellations 09 September 2020 14:10 to request to cancel my contract . They asked why and tried to convince me to stay etc. but told me that they will cancel it and I’ll Pay my Last Bill the end of the month.

12 October 2020 14:47 I phoned again as I received my bill and the bill stated that it is still gonna deduct from my bank account. The consultant said that they had a system problem and will request a refund and cancel the contract

10 November 2020 09:43 I phoned again and the same story. They will cancel it and refund me .

30 November 2020 10:51 I phoned again amd they confirmed that It is canceled and I will be refunded ,but my Latest Bill show the Same amount again to be deducted.

On 3 February 2021 I phones Vodacom again to cancel my contract and even also recorded the Call myself ,where I've been promised that it will be canceled and refunded. Please would someone assist me? Do I have to take it to the Newspapers to get a response?

Would you be so kind to assist. I just want the Contract to be canceled and the money to be refunded