3rd time technicians do not show up

This is the 3rd appointment we have made with telkom for them to activate the line at our house. It is also the 3rd time they did not show up. My husband took leave from work to wait for them and no show no call nothing. As usual there is no answer on the customer help line. Unfortunately there is no other service peovider who can help with this. I have sent emails no response. There is absolutely no assistance.