Telkom terrible service

Telkom scheduled a line installation at my apartment for Friday the 16th of April. The technician pitched and left before he finished the job. I arranged with Telkom and the technician to finish the job on Saturday at 7:30. No one pitched. I contacted Telkom and they escalated my case. Another technician phoned me on Sunday and I booked an installation with him first thing today. My case was escalated again. Today I again stayed at home after the installation was confirmed, and waited for no-one to pitch. I'm left dealing with numerous call centre and online agents and technicians with no one to take ownership to deliver the service that I signed up for.