I lost my buyer/seller's ID and/or e-mail address!
Go to your "My eBay". You can then set the default to view all your auctions in the past 30 days. Find the item you are dealing with and both the seller & winning bidder IDs will be shown on that item description page. With Ebay's new email system, your involvement in a transaction determines how you may contact other members.
Members will be provided with the opportunity to send messages to other members through the Contact an eBay Member feature (available by clicking on a member's ID). Messages received by your recipient(s) will contain your email address so the response will be sent directly to you. This feature can also be used to contact a seller during an on-going auction if you do not wish to use the "Ask the seller a question" feature. Also Winning parties may use this feature if they are having difficulty making contact through their normal email account, IF they are not signed in. If you are a winning party of an auction, you must be signed out to access this feature.

If the auction ended between 30 and 90 days ago, and you have not yet left feedback, go to the top of the page to the navagational bar. Click on "Services">>Feedback Forum and scroll down to "2. Leave Feedback About An Ebay User - see all pending comments at once". You should be able to find your item that way and obtain the user ID through the description page.

If it has been more than 90 days since the close of the auction in question - sorry, you are out of luck as far as using the Feedback Forum for research purposes. However, you may be able to leave Feedback for items up to 120 days, depending on their availability in the eBay database, by including the item number through the link at the bottom of the Leave Member Feedback page.

Once you have found the appropriate Auction number and ID, you can e-mail your party and request them to re-mail their real life address if you need that.

If this is not connected with an eBay transaction, or your item is too old and out of the data base, you can try searching through a people finder search engine. There are many available that can be found by doing a quick Internet Search.

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