Worst Service provider in South Africa

I have an ADSL connection with telkom and i have been have slow connectivity speeds since November 2014. <br> <br> I logged 4 calls to try and get this resolved and each time a technician comes out says he will monitor it and give me feedback, but instead closes the call out a few hours later. <br> <br> This has to be the worst service i've ever recieved and i am still no closer to a solution than i was 4 months ago. <br> <br>