Fault on Line

I have had problems with my ADSL line for months now but this monthI reported a fault on my line on 12th October 2015. I have had response since then but nothing has been done besides me getting a call from them saying they would be at my house on 16 October and never arriving, then eventually arriving on 22 October when I wasn't home. All I get is apologies and they say they will escalate the fault.. This is now beyond a joke! I work from home and am spending a fortune on data packages and I have a young graduate living with me who only works on a commission basis, she will be earning next to nothing this month and her job could be in danger as she has hardly sold anything this month as she cannot check her email and website for orders.