Still waiting after eighteen days....

Reported noisy voice line & poor/no ADSL connection 02/04/16. The SIXTH techie was assigned to the fault this afternoon. Having said this, none of them have called me with feedback or to set up a time to come to my home to attend to the fault. I have called 10217 more than a dozen times having spent over an hour in total on these calls and now have 3 different reference numbers for the same fault as well as a couple of escalation reference numbers. On 2 occasions I received SMSs saying that the fault had been rectified when it hadn't been. I have spoken to agents, supervisors and managers who all promise the earth but deliver nothing and never want to commit to anything in writing. The one manager told me that a techie had said that 95m of cable needed 2B replaced and waited 4 days for this - a further 3 day job - to be authorised. Nearly 3 weeks with little or no telecomms is affecting business badly. My family and I have all used up our cellphone data (instead of wifi) and are now paying the much higher out-of-bundle rates. I fully expect to be refunded by Telkom for comms down time, but what about the extra data costs incurred due to non-functioning wifi? What more must I do?