Buyers and sellers should contact each other within three business days after the listing ends. It is perfectly fine for you to make the first contact with the seller, using the "Contact Seller" link on the ended item page.
Tip: Remember, many eBay sellers keep regular business hours, and some do not respond to emails during the evening, on weekends, on holidays, and so on.
If you cannot contact the seller by email after you purchase an item, or you don't receive a response, you should request the member's contact information and call them.
Note: Sellers can only obtain the contact information of a bidder or buyer of one of their listings. Buyers can only obtain the contact information of a seller if they are a bidder or buyer on one of the seller's items.
Request a seller's contact information.
Note: eBay's Contact Information Policy requires that all members have updated contact information on file with us at all times. If you request the seller's contact information, and it is incorrect, contact us.