Line Installation Delays

I placed an order for a Telkom phone and adsl line to be installed for the company I work for. This was ordered placed around the 5 October and deposit was paid on the 7 Oct 2015. I was promised numerous times that technician would come to site to do installation. I have been in contact with Sihle (Manager at Telkom Sales Call centre) who now does not reply to any of my emails. Further more only receive updates if I contact them. When I am able to get hold of people within the call centre it always appears that no one has proper sensible answers to my queries. At this point I am highly frustrated at the incompetence of Telkom.