Technician left before completing installation

After writing a complaint here on Saturday (2015/10/31) about my order for a line installation which hasn't been completed after more than a month of waiting, a technician was dispatched to my premises on Wednesday (2015/11/04) as per order ***. The technician however left saying the line needed to be traced to the exchange, after 40 mins he phoned to say the exchange was locked and he could therefore not complete the installation that day. I called him the on Friday as I was busy Thursday and he said Telkom was to blame for him not completing the installation. I then spoke to Lundi in Telkom's Technical department who said the technician would be reported and a supervisor would be in touch. No such supervisor got in touch with me and my line is still not usable or fully installed. This is completely unacceptable. The technician's contact number is ***. Need this handled already.