Vodacom wont cancel my contract even after requesting cancellation over and over again. 3rd review and Vodacom still has not contacted me.

this is my 3rd review in less than 2 weeks. I still have not been contacted by vodacom even after they rep**** that they will contact me on my previous reviews. I am still receiving bills for the contract that ended in August and I requested cancellation in August 2020 and called in every month after that to check why my contract is still not cancelled. the last time I called Vodacom, I was told that the contract will be cancelled within 48 hours and vodacom will pay back all the debits that went off from August 2020. I have been receiving calls and messages that my account is in arreas when I requested cancellation in time. I do not know how many times I have to write about this issue before vodacom actually does something about it.