CANCELLATION NIGHT MARE

I called in to cancel my contract which ended on the 19th of September, a consultant by the name of Luyanda Zulu convinced me to upgrade instead , now because he was very good and I even told him that I then agreed and took the new contract even though I did not need it.The problem starts when the courier company confirms the delivery to be that of the incorrect address , I immediately made attempts to correct that with them and was told to contact Vodacom directly and I thought why should I be the one struggling now when I did not make that mistake neither did I want to upgrade in the first place? I told the courier company to send the package back and waited for Vodacom to be one that contacts me ,It was not surprising that Vodacom did not even bother to call . Time passed by and now I received my monthly statement which is billing me for my supposedly cancelled contract, It did not even take in to consideration the fact that I was upgraded and also that they still have not delivered the upgraded package. Are your systems not talking to each other? On numerous times I have been calling Vodacom and have spoken to different people all of them tells me the same story that they cannot reverse the upgrade done by Luyanda only he can do so , now firstly for the company as big as Vodam how could your systems rely on one person ? what if for unseen circumstances he is not able to return to work than what? please get your systems checked out. Now secondly that Luyanda Zulu has since never called me and I think I have been patient enough before coming in to this platform. These are the list of people I get to speak to each time I call Minenhle-cancellation department Linthon- cancellation department Thandeka -general enquiries Inathi- general enquiries Yesterday I spoke to Vuyokazi -cancellation who gave me some email address to use. All I want is 1. Vodacom to withdraw the upgrade. 2. Cancel the contract that I initially wanted to cancel. 3. Correct my billing statement.