Vodacom contracts have you in a chokehold

I am infuriated and beyond frustrated with Vodacom. I have been trying to cancel my contract with Vodacom and they make it extremely difficult. I get different information every time I call, because for some reason nobody seems to have the correct or same information regarding the exact same situation. First I was told that I cannot cancel my contract when I have outstanding balances which they make it hard to settle because they continue to keep charging me. Then I was told that if I settled the outstanding amounts then I can request to cancel the contract immediately. I settled the outstanding amounts then I called to cancel the contract. I was then told that the system, even though my payment was made the week before, that the system had not updated to 'up-to-date' but the consultant I was speaking to said it would take 10-15 min to update and that I should call back after to have the contract cancelled. I call back at least an hour later and was told that it would take 1-2 hours to update and that I should call back to cancel. I called back after that and was told there is a delay and it should be sorted out by end of business and I should call back. I called back today and was told that not only will I not be able to cancel the contract but that while they process the cancellation I will still be charged for this month even though I have not been able to use that sim card for months because they blocked it, I couldn't even call 135. I am so disgusted with Vodacom, I will NEVER use Vodacom again and I will never recommend it to anyone especially contracts with them.