ADSL LINE DOWN SINCE MONDAY 18th JANUARY 2016

I logged a fault on Monday the 18th January 2016, my business is dependant on the internet, FAULT 838CRK190116, phoning everyday for assistance, reaching unskilled untrained call centre staff in all parts of the country, only to be told today the call was closed by a technician, THAT IS NOT ACCEPTABLE. why have a call centre, log a call and get it closed, you cannot escalate, there is no customer care, I have now logged a new fault 292CRK250116. I require urgent assistance in getting this resolved. Telephone number ***