Dude is a scammer who sells carded gc. I bought one $100 and the gift card cannot be used.

He claims those are not carded, but when I called cs and they told me the card was reported stolen.

proof

http://i.gyazo.com/c6c7f3e45e254dc4cf97107fea3924bd.png

Anyone knows how to report him as a scammer to ban his account?