Still no internet connected but we are paying

In August, before we moved into our new home in Somerset East we app**** for a new internet line to be installed on September 3. Since then my husband has been calling Telkom several times a day begging a technician to come and install our line. We have been customers for the past two years. All we hear every time he calls is that a technician is on his way or he will be there at 1pm or 3pm but then no one ever comes. The technicians came one day last week and said they would be back but we have heard nothing since then. We will still be expected to pay for our internet line this month but our line has not been installed yet. Why do we have to beg for something that we are already paying for? Why is no one willing to assist us?