Telkom line installation

I've never been so frustrated with a service provider in my life ever. Every aspect of their service is poor. at the last hurdle trying to get them to install the line at my house. They schedules an appointment but did not pitch and I have not heard anything from them since. I have tried every possible telephone number for them that I can find. Either they dont answer or they cant help me. Who do I contact to try and find out when they will do the installation? Regards Jacobus