Bad service

My fibre was scheduled to be installed on Thursday. I had to follow up with the technician and then he cancelled. We rescheduled for Tuesday morning at 8am. At 07h50, I (again) sent a message to confirm that he will be there at 8am. He rep**** by saying he is on his way. At 08h17 I enquired about his ETA as he was late. He rep**** at 08h29 that he has now been called to the office and that another person will be sent. I am a new client yet and this is how I am being treated??? Perhaps I made a mistake to render your service.....