Poor service from Telkom

As a loyal customer to telkom I am highly disappointed with the poor service I have received. I logged a fault on the 15/11/2015 with telkom. To date no one has responded to my query and upon calling 5 times I keep getting told it is in progress and a technician will sms me,however this never happens.It has been escalated twice already and yet nothing. My last call to them this morning I was told the query is still open and some one will attend to it. My question is when as it has already been two weeks.. Should I receive no feedback by Monday 30/11/2015 I am considering cancelling the line.