If you have a website... you might want to post something there as well, especially if you have a lot of traffic.
If someone is screwing people over, then make sure you get the word out in EVERY way you can. I HATE jerks who take advantage like that. I know a few people who do that... thankfully they are well known.
Good luck in getting your money back!! Or the Mantids!!
Annie B. <:3 )~~