Vodacom can’t seem to cancel contracts

Vodacom has pathetic customer support. I called 5 times to cancel a contract that ended in July 2023. First call made in Mid June 2023, was advised that on Vodacom System my contract ends 1 August 2023, but on the Vodacom app it ended 31 July 2023. I was told by advisor I will not be charged for August, their supervisor would investigate the date issue. In July I look at my statement as I see an increase in my debit order R156. Again I called customer care who informed me my contract had end in May 2023 and that reduced subscription had called away. Again was informed that they would investigate and call me back. The supervisor called and said she would investigate and call back. No feedback was given and I was billed R156 extra at the end of July 2023. Assuming that this would end this problem as it would just be the final payment.Today I see that my contract that I cancelled is still active and that I’m going to be paying another month as per the customer service consultant due to contract ending 1 august2023. They can only place cancellation now that contract ending. This is daylight *******, they Dnt know which date contract ended. I dnt see why I must be held responsible for their poorly trained staff and mistakes. As all the calls I have made to cancel this contract