Very bad service from Telkom

<p>I have an adsl line from telkom and on the 11th I reported it as my speed on the line was very erratic. On that same afternoon someone from Telkom called and tried to convince me that the speed was now ok. I finally managed to convince him that is was still just as bad and he said he would investigate further. Lo and behold my line went down on the Saturday morning and is still down. I chat with telkom via their website every day and every day I hear exactly the same story that the technician has the fault in hand and will contact me to make an appointment to come and see me to get the line fixed. There was a Telkom contractor in the street last week Wednesday and I asked him if he could help and he came and tones my line from my house to the "street box" and said that it was 100% up to there. What can a person do to get this cleared up. I run a small business from home and without my line I can't make a living. Help!!</p>