I say, it is what it is... a part of the hobby. This is only one side of the story, or should I say both sides from the view of one.
Enjoy the hobby, do not let this get you down. You cant and should not keep beating this into the ground.
As mom always said, get mad, get over it, move on... life is too short not to be happy.
I am quite sure the other person, is just as equally upset, and even though did not fork over cash as requested, did offer to make it right. I see no reason to chase someone away over such a silly thing, unless this person was known to do this repeatedly. We cannot judge by one incident, IMO.
Happy Landings!