I feel super bad for the guy who I assume is Ray. I agree with all the comments above that he should go further to try to get his money back. As I person who once got ripped when I was new to the hobby I totally know how he feels and it stinks.
However, I do wholeheartedly agree with Marty that just because someone only takes cash doesn’t mean they are scammers. Most guys in this hobby are honest but you do watch out for the minority that are dishonest.