TELKOM WILL..RESOLVE THIS PROBLEM WITHIN 10 DAYS

Our landline at home gave a loud screeching sound, since the line is my chronic very aged parents,tried to fault find,but to no avail,very next day logged the fault online on Telkom website, given a reference no(31CWZ210515),but told TELKOM WILL ENDEAVOUR TO RESOLVE THIS PROBLEM WITHIN 10 DAYS????,decided to go in personally to sort out, wasted a whole hour, only to be sent a sms it would be attended to 25/05/15, their tech came out, claimed a underground fault and left, haven't heard of him since..and so my chronic parents lifeline of communication still silent in the dark..POOREST SERVICE EVER FROM TELKOM!!!