Disgusting business practice!

I took out a 5GB wifi ****le with Vodacom in October 2018, and when it was nearing the end of my contract I decided to cancel as I had got gotten unlimited data via another supplier for my home and didn't need to have two data contracts. As per contracts I called Vodacom on the 8th of September to give them a month's notice of cancellation and spoke to a consultant named Simpiwe, who told me my last debit will be on 1 November. I was concerned with the service I received from him and the fact that I didn't get any notice of cancellation via SMS or email. I then called again on the 14th of September and the 17th of September to double-check. I don't recall the consultant's name on the 14th, but on the 17th I spoke to Zama who then assured me that my last debit would come off on 1 October. So first of all it was confusing, would 1 October or 1 November be my last debit order? Either way it went off on both days, and I figured maybe 1 November was the last date as the ****le expired in November. On 3 November I called back to just ensure my cancellation was now final and 1 November was indeed my last debit and spoke to Siphele, only to be told by her that the cancellation had in fact not been done. She told me she would escalate it to management as the cancellation was not done correctly, and that all my calls would be pulled and would be attached to the escalation, and I was told a manager would contact me by the close of business on that day, which never happened. On 4 November I called back again and spoke to Chantal, who told me the system was offline but took down my details and told me she would call me back....she never did. On 5 November I called back AGAIN and spoke to Celi who told me she could see the cancellation had STILL not been done, and who then processed it on her side, and I say this because that was the first time I received a proper notification that it was cancelled via SMS, but NOTHING via email. I see today that I was ONCE MORE charged the debit order. I am FURIOUS at the DISGUSTING way Vodacom does business!!!!!!! Is this contract ever going to be cancelled? Will I get the money back that I was overcharged? Who knows as Vodacom clearly does s@#&%$ business!!!! I wish there were no stars available on this review as they don't deserve ANY!!!!!