After the auction closes the highest bidder will then send you their address through the verified system. the verified system is there to make sure that addresses are valid and not a scam. So don't accept any addresses that are through email you will get conned out of your credits. Once you receive the address you send the item to the address and either click that you sent it or if you add tracking, add the tracking number first by hitting add tracking button and then hit sent item. Once the item reaches its destination the winner will click that they have received your item and then credits will be transferred into your credits. This is we're getting $0.90 tracking is handy. If there is no tracking someone can say that they have not received the item and dispute the auction and get their credits back. So it's a good idea to add tracking. Just a word of advice. But that is how Listia works. I hope this helps. :o) HAPPY BIDDING! -Travis