for the item 320696327440 today, the myibay bidder didn't snipe, my price was far high than the one won, the seller ships to my place, and doesn't have any restrictions, don't know why

It was not because of restrictions. There was some network issues around that time and some snipes could not be submitted.
The problem is resolved by now. I'm very sorry it affected your snipe. I hope you can find the same item for the same deal.