MadReferee is right. SCAM. I've been on eBay since 1997 and 100% of the "private, pre-approved bidder only" auctions I've seen have been scams. It still alludes me as to why eBay allows such. Literally on dozens of these auctions I've seen, every single one has been a scam. It seems that eBay doesn't care if it is a scam or not; only that they get their selling fee.
After all these years using eBay, I use it seldomly anymore because of all the problems and eBay's reluctance to do anything about them. There is currently two major court cases that are challanging eBay's immunity to people getting scammed. According to FoxNews and CNN both, they predict that there will be major changes soon in eBay because they (eBay) does not have any liability whatsoever for these obvious scam deals and do not do much at all to help prevent them. They only want their fee. It used to be a great place. Now, it still can, but you must be very careful!