Vodacom is ****s and *****, *****ing from customers

I have been a loyal customer to vodacom but they failed me and I just feel ******. I was contacted by one of their telemarketing team members who advised me one of my lines is taking extra data and airtime and thay my billing is irregular and an upgraded package would benefit me, this sounded good and I agreed. I then got a bank statement and it showed me my debits from vodacom remained constant and not irregular as per the person who contacted Me. I phoned in to cancel the upgrade on my numbers to wich I was informed I must pay a cancelation fee. I asked to speak to a manager as I didn't ask for an upgrade, I was contacted and sold a package misleadingly, under false pretense and felt this was wrong. I felt I do not need to pay a cancelation fee as I didn't apply for it was basically sold it under a lie... They then said they will cancel it and I said it would be fine as I was happy on the old package... A month later I still get billed the higher rate, when calling in and asking what is going on as when I called to cancel even before using it they agreed so why am I paying for stuff I didn't use... They are robbing people and want to play on the fine print... I asked if a manager could call me back and still no response or feedback, clearly don't care about their customers needs but quick to take people's money. Poor poor customer service, if I can advise anyone stay away from vodacom as they don't care about their customers