I appreciate the intent, but this forum is not really the place for these kinds of posts.
We remain neutral and don't really post or condone postings like this. There are lots of reasons this could have happened and while its entirely possible that he did it because he's just a jerk, there are lots of possibilities.
I am sorry you had an experience like this... believe me, I get them all the time. I've lost hundreds of dollars in chargebacks. You just learn to live with it.