CANCELLATION OF MY CONTRACT

I have been trying now for the past two months to cancel my Telkom Mobile accounts. I have sent through the cancellation documents as well as my ID and after numerous attempts I have not received any feedback from Telkom. Both my Telkom Mobile accounts have expired and I gave them 30 days notice with no response, I phoned the customer service centre spoke to Zeth she advised me that Khutso will call me back that was on the 1st of Jan, i called the call centre again on the 6th of Jan spoke to Nkosikhona he advised me that Noktula will get back to me , i asked Nkosikhona to please log that they must call me back after 16:00 as i cant take calls where i am working i called again on the 7th of jan as i did not get a call from anyone from telkom and i spoke to Lungelo and he was off great help he said that Khutso will call me on Friday the 8 of december and i asked him to please tell them to call me after 16:00, friday morning i got 1 call from Khutso as i advised i cannot answer she left a msg and she emailed me, i rep**** to her email as soon as i received it and asked that she can call me after 16:00 and up to this time and date 12 Jan i did not get a call back from Khutso or Noktul