I do not believe it, you try to recover 100$ by giving away 600$ to a scammer! and this is an obvious scam. https://bitcointalk.org/index.php?topic=5168836 Here is another scam like this but the op there was not stupid like you and was safe. I hope you open a thread at scam auctions so others can stay away from that site and forum moderators can take the matter in their hand. Sorry for Your Loss mate I hope you have a good profit next time you trade.