ADSL LINE NOT WORKING

My ADSL line has not being working since the 18 December 2015. Had a technician come out to sort problem on the 30 December 2015. He did not do the job properly. Then phoned Telkom again which I was given a second reference on the 31 December 15 ref 21crk311215. I have being promised over and over again that a techinician will come out to sort the problem. Till today I no one has come. Due to it being a call centre they all give different stories. It is so frustrating don't know what to do. I really need the line to be sorted out.