MTN keeps withdrawing my month to month contract cancellation and keep billing me.

Hi got a data contract from MTN with black Friday in 2022 and I have hardly been able to use this contract has the signal has been useless since day one. I stay in Pretoria, this is not an issue I should be expecting in the capital city. Eventually on the 2nd of August this year 2023 I decided to cancel the contract as it provides me with no value. On the 22nd of August I called the helpline again to confirm that the contract was canceled as I've been receiving sms notifications from MTN stating that I withdrew the cancelation. They then assured me that the contract has been marked for cancellation. On the 22nd of September 2023 I phoned them again as I again had a notification of the amount that will be deducted. They then found that the cancellation was withdrawn with no reason, and as I got passed on from the one operator to the next trying to find out what is happening I ended up at Junaid Govender who the assured me all is in order and I should Ignore the sms. The contract debit order was still deducted but from the various operators the information was that this would be the last deduction. Now today the 27th of October 2023 the contract debit order was executed once again after which I again phoned the help center only for them to tell me that the cancellation was withdrawn on the 22nd of August 2023. I asked the operator to get me through to a supervisor upon which I was told that they are all busy and one of them will get back to me later today. This process is appalling and quite frankly feels *****ulent as they seem to refuse to cancel my contract which is a month to month contract and keep taking my money for which I barely get any service for. I will be sure to avoid MTN as far as possible as this is the worst experience I've had all round.