Technical Department taking me for a fool

I am so furious because my adsl line was supposed to have been installed 3 weeks ago. The first time the technicians came to my house they said they needed cable the second time they came there was a problem with the line. I call Telkom everyday to find out when they coming to install and I just get transferred from one department to the next. The most unprofessional service I have ever received. Telkom has a policy of a waiting period of 21 days. my waiting period is going in for 40 days already. The telkom staff keeps telling me that I need to make an appointment with the technical department so that they can come out again for the tenth time and when I called this morning the lady in the technical department put me on hold and never came back to me I had to listen to Telkom's irritating voice machine. So Telkom where is your service delivery that you promise.