Poor ADSL service and noisy line

Over the past 3 months, I have had terrible service from Telkom, with regards to a noisy line and poor adsl speed. I have reported a number of faults (latest 808CRK070415). Poor response from technicians and my request for the supervisor to contact me, goes no where.<br> The last time a technician came to me on a Sunday, he checked the line, and said he would be back after checking the box, and he never came back.<br> The worst was a technician saying to me, that I must get my ISP to lower the speed of my line. What nonsense, this is 2 meg line, how much lower must it go.<br> I'm at my wits end right now.