Incorrect billing

Vodacom contacted me shortly after complaining on this platform. it was assured to me that my contract has been cancelled and that I have a 0 balance on my account. After telling me this Vodacom sends me a bill of 2419.45 due at month end. After sending numerous e mails and calls to customer care to enquire why they charged me, nobody is getting back to me. This is beyond ridiculous and i have been going up and down with Vodacom for the passed 2 weeks now and nothing is getting resolved. I did not get any minutes or data from Vodacom this month so why should I pay this amount. Please rectify this urgently as this i am being ****** by Vodacom and being billed for services I am not receiving