Vodacom is quick to sign contracts, but unfortunately USELESS when it comes to cancellations!!!

I have been as customer of Vodacom for many years, and I am very disappointed with their customer care / service! One of my contracts expired end on 30th of November 2018, and phoned 082135 - Customer Service to give Vodacom notice that I will not be upgrading and the number needs to go over to prepaid. On the 14th of November 2018 I still did not receive any confirmation that the cancellation was done, so I send an follow-up email to ********** Yesterday (Thursday, 10 January 2019) I received a statement and saw that they are still billing me for the number that I cancelled that was supposed end on the 30th of November 2018. I phoned multiple times Yesterday to see what was going on. The first lady that helped me telephonically said that she can see something of an cancellation on her system that was dated on the 24th of October 2018 but she needs to speak with somebody in admin, after putting me on hold for over 10 min she took me of hold and her story changed completely by telling me that there never was anything logged of a cancellation. Before I could even ask her to send me the call recording she mentioned that ‘this call is NOT recorded’, I told her that she is lying as in the beginning of the call it said that all calls are recorded and she needs to send me the call recording. After hanging up the phone I received an SMS: ‘Your query has been escalated to one of our Solution Experts…’ Today (|Friday, 11 January 2019 @ 13:30) I phoned back and spoke with Nonthandazo after I requested to speak with a cancellations manager I was told that all managers are not available and she works in the cancellations department then she told me that she cannot do anything as the account is now in arrears and won’t be able to log the cancellation. LET ME MAKE THIS CLEAR, the account was not in arrears when I requested the account to go over to prepaid! This is the first time that I am resolving to HelloPeter to review Vodacom, I have never experienced such horrific service with people that does not even know their own company policies! I need this resolved!!