Bad sync speed on adsl line.

So after 3 weeks it seams i am forced to do this now. My phone line was dropping randomly and would only work after i reported in on the Telkom site. After a while that did not work so they sent a technician out to fix it. The line was working but the sync speed was really bad. If i try and use the net by playing Dota2 or any other game the line would drop and not sync for about 1h to 3h. I reported this but they just keep sending me a sms saying that the problem has been resolved and after the third time i decided to call them on there Residential contact number. The told me that they will send me a sms to confirm when a technician will be coming out to fix the problem, but yet again they just sent me sms to say that the problem has been resolved. So i really don't know what to do anymore.