Terrible Service: Early Mobile Contract Termination

This is the worst mobile service I have ever come across. I app**** for an early mobile contract cancellation through the telkom app as advised by telkom employee in Nelson Mandela Square in Sandton. I app**** for the cancellation on 31st December 2018 in accordance with the 1 month notice period. All I received from the service provider were sms confirmation of my intent and a promise that I will be contacted by their personal to finalise my request. This never happened and when I called Telkom Customer Care services to follow up on the matter I'll be waiting online for over 17 minutes and when my call was finally answered I was told that their retention personnel listed on their system that I have not been reachable and when these so called "calls" of theirs came through from a ********** number their were cancelled in 40seconds with no one talking on the other side. I have been calling the customer service none stop since 21 Jan 2019 latest call I made was 1st Feb 2019 which lasted for 39min19sec requesting a confirmation of my contract cancellation which should have been resolved and closed no later than 31st Jan 2019. I paid the settlement amount including the cancellation fee which costs R14577. 00 and an additional debit made by telkom of R1811. 09. I was told by the customer care personnel that the account was not yet closed of which with the help of the manager I was told its now closedcabd that any charges incurred as of 1st Feb will be wavered . My data and airtime was immediately taken, I resorted into buying airtime and data thereafter. To my surprise today 3rd of Feb 2019 I am receiving smses from Telkom Mobile notify me of Data available to me until April 2019 this clearly showing that my cancellation is once again not resolved and this case not closed after so many calls and proof of the settlement was emailed to Neo on email address ********** on the 31st Jan with case number ********** 7 as my reference.

I refuse to be paying for a contract I cancelled as me doing so I am trying to curb on my debts. I will reverse any debit order effected by Telkom Mobile in my bank account of any charges incurred in Jan or February 2019. Please help