Technician not honouring appointment

Technician was a no show today after he promised to install ADSL line. He needs access to our neighbors premises to connect my line, who is only available on weekends. I ordered the line on 1 April and received an installation date for the 13th. After he explained he needs access to the neighbor's premises we agreed to set up the appointment for today. It is now 18 days later and still no line. Not only did he waste my time by sitting and waiting for him, now I'll have to wait another week to make another appointment. No use going to the local Telkom branch either. After waiting 20 minutes, got the story that they can't get hold of the tech or a supervisor because its a weekend. Useless!