Request for repair keeps going full circle

My Telkom line at my residence is faulty. The main cable entering the premise is damaged and the insolation around the cable is off. It is so bad that it has even started to rust. The result is, any rain or excessive heat, and my line is down. <br> I have logged numerous calls on this (latest is 595CTK181215). After a day or two, they test the line, and although it might still be \noisy"the line is up and they close the call. On the customer satisfaction survey"