Question to you... Let's assume that is true and that it was indeed in the FAQ. My question, to you, is... such vital piece of info, why put it there and not clearly on the page of purchase?
Would it be better if it was more noticeable? Of course it would.
With that being said, if that happened to me, first and foremost I would blame myself for not checking everything thoroughly and seeing it as a lesson, instead claiming that they "stole my coins".