Fault reported >35 d ago,escelated 4 x not fixed

The fault was reported 12 April 2015. 10 days later I received sms saying someone (Lucas) fixed it. I rep**** it wasn't. Phone line died after that completely. I entered the link and completed the form stating it was not fixed, since then escalated it twice more on-line. I called and also escalated it. Still no response and the line is not working. I have been charged for the time period from 12 April as well. I sent e-mails to various of the e-mails addresses on the web, only one was successful. I would appreciate it if someone can tell me what is the next step or person to contact. .