not able to receive calls from landline

I lodged a case with the call centre on 13/11/2015 when I could not receive calls from landlines on my telkom mobile number. The agent who assisted me verified that it is a genuine issue as she could not get hold of my when calling. She tried to get it resolved over the phone but was unsuccessful. She then informed me that a technical assistant will be in contact within 72 hours to resolve the issue. <br> <br> The issue has still not been resolved over a month later despite numerous calls to the call centre and speaking to a manager who escalated the matter. I am just sent a text message notifying me that they cannot contact me and I should call the call centre. Very frustrating and extremely bad service.