Incorrect billing

I've been billed incorrectly for the past 4 months, and after the first incorrect bill I called to dispute it. 5 days into every month, my phone gets blocked because I reached my account limit. I've always paid every incorrect invoice in hope of this being resolved. After many months of nothing being done, I decided to cancel my contract. I called Vodacom to inform them. A day after, I called and the agent confirmed that my context is cancelled and my number removed from the network. However, the number can still receive calls, which leads me to believe it has not been cancelled. My wife called and they confirmed: it hasn't been cancelled. Through this period they often could t help me, because my number was migrated to a new system that nobody could access for some time. <br> <br> My experience with Vodacom has been ********** and I would urge anyone to reconsider dealing with a company that has no interest in their customers' service whatsoever.