CONTRACT CANCELLATION

I had taken a 24 Month Contract with Cell C from. The contract supposed to end 5October 2020. I was called by a Cell C Customer Service representative in August 2020 informing me of my contract end date if I would like to renew. I opted to not renew and on the 28th of August I called them and received a confirmation that my contract cancellation was processed successfully and my contract would be terminated of the 5th of Oct. The same day I went into the shop to confirm and they said in the event I needed to take any item I would have to reopen a new account. On the 5th of October I received confirmation messages of the termination. Today 09 October I received a payment request that full money will be deducted from my account for the terminated contract. When I called them the consultant told me that since I received the service from cell c, I was supposed to pay and since my contract had been cancelled on the 5th then cell c is to debt my account for the month. To my surprise I notified them more than a month ago about the termination. I was transferred to the her managers who said something almost the same yet I do have proof of when I requested the cancellation. I was then transferred to the cancellation department and waited for more more than an hour without waiting for someone to take my call. and seems no one was going to answer that call.