ADSL Line faulty for 6 Months - No Repair

I had a ADSL line installed in January this year and since April have been reporting a faulty line. I have bough monitoring software and in testing, been getting a downtime between 34% and 86% and the telephone is noisy, which I cannot utilise. They have been charging me every month. It is very difficult on their system and call centre to get hold of somebody who can resolve their issue and even credit my account.

One of their OpenServe technician where at my house on 10 July and tested the line and found it to be faulty. He followed it all the way to the junction box where it goes underground and said that it was an underground cable fault which was down to earth.

It is rediculaous that a company of this size cannot rectify a simple fault.

Wonder how long it will take them to react.