1) Go to your name on top right of page and click on the blue dot next to it & scroll down to MY LISTIA.
2) On the next page, on the left hand side, scroll down to ACCOUNT SETTINGS, and click on VERIFY YOUR ACCOUNT.
3) On next page, fill out all the necessary "verifications" applicable to you. It may be all, or some, like your phone number, your credit card or bank. Usually everyone has Facebook, but not everyone has Twitter. To learn more, click where it says LEARN MORE ABOUT VERIFICATION.
4) After you're finished with this section, on this same page scroll down again to ACCOUNT SETTINGS and click on SAVED SHIPPING ADDRESSES, if you haven't done this yet.
5) On the next page, go ahead and add your address and then click on VALIDATE ADDRESS to save it. After that is done, then from now on every time you win an auction, you just have to click on your saved address to send it to the seller.