Telkom - bad service with new installations of ADSL lines

I contacted Telkom on the 2nd of October 2018 and requested the installation of a new ADSL line at my property. They advised that the installation will take 21 days. I have been calling them constantly to enquire what is the delay and was advised that they are using a new system that is not integrating with the other system. It has been escalated 4 times and ended up with the line manager of the call centre, Mr Marlon Naidoo. He escalated this to a Kribasheni Kalicharan on the 6th of December 2018. I have been emailing Mr Naidoo with no reply and when I call now he is always busy on another escalation. I am not even a customer of Telkom yet as they have not installed anything yet and this is the service I receive. I shudder to think what will happen once it is installed.