I hate that people have to go through this, and I know it might seem like you're pounding your head against an impersonal Internet wall. That's why some people need a "coach" to help them through this. So go get 'em! Don't just save correspondence - use it against them! Make them regret the way they have treated you!

Of course, beyond attempting to get your money back, you have also done a great service by warning others about this fraudulent product.