We knew there is a fake review on pursequeen wordpress blog, we tried to contact pursequeen before but they don't reply us.
It's simple to prove. Just ask that victim to offer evidence. If he/she has ever purchased from us, he/she must have received emails from us. Simply take screenshot, see if he/can offer it.
If that detractor is good at photoshop, he/she may make a fake screenshot, but I think it's not hard to detect that.
Some of our customers tried to help by sending another review, and pursequeen simply ignored them.
I don't trust pursequeena, they recommend some sites which looks really bad. I guess they may be associated with or supported by some sellers.