The next time he works for them and charges them a normal rate, he will then be called a conman as they will think he's trying to rip them off.
It should have been done on an hourly rate or a fixed price which should always be more than what he would have earned by the hour as there is a possibility that you could be there all day if you come up against complications.
Andy
It should have been done on an hourly rate or a fixed price which should always be more than what he would have earned by the hour as there is a possibility that you could be there all day if you come up against complications.
Andy