Why can I not get hold of anyone at Telkom?

I have been trying for months now to get a landline installed at my home so that I can get internet services at home. I have been trying the call centre over and over again, but all I get is that there will be a long wait due to high call volumes, but when someone gets told that they usually expect a maximum of about 5 minutes. I have always given up after approximately 20-30 minutes of being on hold and listening to the same jingle over and over. I have tried the online \chat to an agent"option"