Line not working for more than month

Fault was reported on 23 March 2015. 3 Technicians have been to the sight since being reported, however the line is still not working. One of the technicians indicated that it is the cable that needs to be replaced and that someone will be sent to do so. Two further technicians visited the sight without communicating with previous technicians so I had to explain to them what the initial technician indicated. This service is appalling to say the least.. Then I receive the account today, and I am being billed for line rental that has not been working.