Vodacom owes me money

I cancelled my contract with vodacom in December 2020. I then received a call from their retentions department offering me a new deal and contract I took the offer only to realize few days into the contract they loaded the incorrect deal for me. I contacted them try apologised and offered to reverse and load another contract the end of that month. I called them a few days before month end they said to call to e first when I called I was back to my old contract that I tried to cancel in the first place. I called the cancellation department and the contract was cancelled on 10:03:2021 and to my amazement I was still billed the full amount albino with my fiber I called vodacom and spoke to Dumisani Hadebe and he said to pay the amount and I will be credited back as this was a full months premium for 9 days of use. He promised to call and credit my account and also to resolve the contract and put me on the plan promised. I have been waiting since and the new month has started with no contract and no credit of the money I paid after he told me to pay it though I don’t owe this money.

*** Kefilwe Agbebi