Over charge, over promise, under deliver

The representative measured and gave a quote. I realised they "over measured" and had to point it out when accepting the (over charged) quote. They promised to measure again. This happened they day before the job was due to start. At this time I am told they do not have enough bricks / paving blocks. I take a deep breath and say OK lets get the job going tomorrow and then it can be finished on Monday. Wil you have enough blocks on Monday? OF COURSE is what I am told. Today they "push" me to only finish the job on Tuesday, else the bricks and workmanship will not be guaranteed, because the bricks will still be wet. I refuse and they promise to start work today. 8am comes and goes. They rock up at 9am and when I phone the owner (NUMEROUS previous calls to various people to try to fins out what is happening) he tells me he does not have to explain to me and he would rather withdraw the team because "he will not update me throughout the day on progress, I must let them do the job..." Mmmm maybe I would not need updates if commitments were honoured!! BEWARE!!!!! Overcharge. over promise and underdeliver should be their motto