Ordered tickets for the Hong Kong Sevens well in advance and received a confirmation number. Asked about ticket delivery and received a timely and well worded response. Then, nothing. No reponses to other e-mails, no answer when I called. Since the prices quoted were below general market, I can only guess they were selling before they had tickets in hand and then could not find pricing which gave them a margin. Very dirty pool. I ended up obtaining tickets elsewhere.
Caveat emptor on this site. I won't use them again.