Vodacom *******ly billed my account - and now I can't get through to a consultant!

I am thoroughly displeased at the service I have received from Vodacom. I called their cancellations department in APRIL 2019 to cancel a data contract. I was assured by the consultant that the cancellation would be processed. Vodacom then continued to *******ly debit my bank account for the months of May, June, July, August, September. In October I cancelled the debit order at the bank itself. I have just had notification from Vodacom Legal that I have an account in arrears of over R3000! An account that was cancelled in April last year. I have been calling the Vodacom cancellations number repeatedly and keep getting cut off. This has happened over 11 times since last week, consultants eventually answer the phone and then after a brief discussion drop the call. We finally had a consultant on Friday who was professional and friendly (and did not cut the call), she said she was tracking the call made in April using the cell phone number that I had called from. She said that the agent had probably not followed through on the cancellation request. She assured me that if this was the case, and she thought it may be, that we would not be responsible for the ridiculous arrears bill we have recently received. She was in contact with her manager and assured us that she would call us back once she had more news. Unfortunately that hasn't happened yet.

I am hugely frustrated with Vodacom. I followed their rules, checked the correct boxes...but it is near impossible to talk to a human being without being cut off, and I am wasting my time and airtime on a mistake that was made by Vodacom in the first place. This is extremely bad service, I am hearing more and more stories about Vodacom lately that are not painting them in a good light.