'All day appointment'

I had a scheduled appointment for the 24th of June to move my line because we just moved house. On the 23rd I got a call from an agent stating he was on his way to my place. That call was at 14h00. He never pitched. No cancellation nothing. Then yester I waited home the entire day because they were going to do the install on the 24th. Eventually at 3pm I called the call centre only for them to tell me all I can do is wait. No one pitched. And no one called. <br> Then this morning I received an sms saying they will come now on the 26th. In this case it would have cost me 2 and half days of work because of their \all day appointment"policy. Where do we draw the line"