Two Weeks of no landline or internet yet no help?

Two weeks ago we reported a dead landline and no internet after the lights went out. Telkom told us they have dispatched a technician and it will take between 1-7 days to fix as it's a fault in the line, the technician will contact us with a followup call immediately. 7 days has come and gone, no phone call from the technician. I phoned Telkom and they stated 'It will be done today or tomorrow the latest! We found the fault' Today and tomorrow has also come and gone...I am now resorting to phoning nearly every day and feeling like a pest. We are on two weeks of no internet or landline and all Telkom has to say is 'A technician has been dispatched but we can't say when it will be done by, we will get the technician to contact you' STILL no news from said technician two weeks down the line. Please! We run a business off of our internet and my studies is distance learning(I.E ONLINE), I have exams in a week and the stress is really piling on! Reference numbers: 85BNK061017 Any news or help...would be fantastic! :(