Basically, it is a platform for selling objects and game accounts, in which you sell your items, the balance reaches your account, but they do not let you use it to buy or on your website, if you do not send them a copy of your documentation (DNI) and a photo with the ID in hand, to double check that you are you. Say, that I sold a few million in a game, and I have practically lost them, I had no idea that I would have to send my documentation. To a Singapore website, who knows what they will do with this documentation. With your copy of your ID you could borrow, open bank accounts, basically use your identity to know what ends ... I refuse, so the user who ALREADY SOLD and does not want to send the documentation does not return the money or nothing. They earn free money, which is what will happen with the balance of my account. I hope you're worth not to sell your things for G2G.com.