Hello,
Pay Exchanger is not scam, we are online from years with not 5, 10 or 20 but hundreds of real verifiable independent reviews over Facebook, Google and Bestchange. Everyone knows how credible bestchange is, they are not going to remove a review until they are provided with proof that review is fake or spam.
Actually what I can see here is that, even on your profile its written as deal with warning and caution, your feedback here is negative. This is actually question on your credibility.
Still, I would love to investigate your case. Let me know your email and invoice no.