With very few exceptions, a provider who can’t manage to be where we agreed, at the time we agreed, at the price we agreed, gets struck off my list. If the guy follows up, apologizes, gives a plausible explanation, etc., sometimes I’ll reconsider; but it always leaves a bad taste in my mouth. The guys I see regularly are as anal (you’ll pardon the expression) as I am about where, when, and how much. Life is too short, and mine in particular is too chaotic, to put up with that crap.