Telkom cannot fix my line and adsl

Our telephone line has been working intermittently, we have logged the first log on the 8 of December 2015 and have logged numerous logs and they have all been closed without our consent or feedback. <br> <br> I am not allowed to escalate this according to call centre agent Lynda as he says he does not believe that he has to to do that. He also said that he does not have to give me his surname so that I can identify him in further dealings with Telkom. <br> <br> The supervisor Sydwell does not keep his promises of providing feedback. We have spoken to him on two occasions with no joy.<br> <br> How can I get get this resolved as I am paying exorbitant data cost as I we are running a business from home and need ADSL to work.