At the end of a Kickstarter campaign, the project sends out a form for you to fill out. I get to decide what questions it will ask. I ask for name and address (obviously), but I also ask for your phone and email. Those are of assistance in case of postal foulups. With the email, when your game goes out, an email is generated by the shipper, so you get all the same knowledge I have!
With overseas pickups that have been arranged, when the time comes, an email will go out with the details and specifics.