Fault 652CRK021015 from a month ago still faulty

I reported an ADSL fault Fault 652CRK021015 on 2 October 2015. It is the same fault that I reported in February of this year. The line drops constantly. They sent out technicians who lie saying that they have fixed something yet the line continues to drop. They also closed the ticket **********ly claiming the fault was repaired even though I respond the the SMS indicating that it has not been fixed. They claim the fault is still open on their side but will not furnish me with any proof. Subsequent technicians come out and blame, router or telephones, but when they use their own devices and the line drops they leave saying that it is a cable fault in the area, there is no such area fault listed on their website. They continue to send techs out who have no idea what they are doing. They do not get back to me when I inquire, they only apologize for the inconvenience and say it is in hands of a technician. They will not respond with an ETA or proof that the fault is still open.