Telkom service non existant

Line failed two weeks ago reported 3 times, issued with two “Fault reference” numbers ********** 6 / ********** 7 no responce recieved and when checking line faults on the Telkom App it reports no fault reported. Decided to cancel the service collected a form from Cresta Telkom service centre, tried to EMail to the address on the form, it is returned “message delivery failure” back to service centre at Cresta who cannot help me. How Pathetic is this.