Not pitching for installation appointment

My father app**** for an ADSL line at the Festival Mall branch in Kempton Park, to be installed on Saturday the 21 October 2017 and was sent a message on the 25 October 2017 that the intallation was scheduled for the 26 October 2017 between 08:00 and 16:00. The technician came and was unable to do the installation and said there would be a reschedule for another day. No communication was made until my father went to the shop on 31 October 2017, Where they scheduled for 3 October 2017 between 08:00 and 16:00. I would just like bring to your attention that everyone in this household works and is not at home between 08:00 and 16:00. So my dad missed a day at work so he can be available for the technician. No one came and no communication was made to say that no one will be coming. This is an inconveniece because if it happens again and no one communicates, he will have to spend petrol again to get to the branch... and sit at home and missing work again waiting for a technician of whom we don't know if he will come this time. Please advice of what we should do as customers of Telkom seeking your services. As this is frustrating. His no. is ********** 232 email: **********