I strongly suspect this project of being a scam because of tactics they use to promote it, but you'll have to post some evidence as to how you directly got cheated by them... Making another account to bump your thread isn't enough.
Can you post a few more links to screenshots that show your involvement with them?
Also, links to the websites or ANN threads of previous scams you think are connected would help a lot too.
Using sock-puppets and paid shills to promote a project by pumping their ANN thread equates to scam. If they start misleading people at the very first stage then how can they be trusted on anything else?