Vodacom's contract deals are a ****

Vodacom is customer service is so inconsistent, I feel like their contracts department are running a ****. For anyone hoping to take a contract with Vodacom, I'd tell them it is not worth it. I had a contract running for a couple of years, whenever I'd wish to upgrade, the service would be great. Then I finally wanted to cancel it altogether this year and they kept making the process impossible. First, I went to Newmarket Vodacom in October, and they advised me that my contract expires in November and would not be able to cancel it. I went to Mall of the South on November 26, the consultant made calls to make the process possible, and then I spoke to a consultant advising her of my wish to cancel. She kept insisting I hear about the specials before I made a decision, I told her unequivocally that nothing will change my mind and she must just cancel. She was relentless and I told her that I just want a cancellation, she said she would process it. A few weeks later at the beginning of December I made a follow-up when I receive an invoice for December. The person who assisted me first told me they could not find records of my call, I refused and said there was no way. Suddenly after I some minutes she found the records where I demanded contract cancellation, but unfortunately because it was not processed then, she would do it on that day. I asked that they backdate my cancellation from the day I wanted it, but she could not do it. She escalated my complaint and said it has a 48-hour turnaround, I got an invoice three days later but nothing about my cancellation and crediting me for trying to **********ly get me to upgrade my contract.