From the announcement:
Here at The Miniature Building Authority, we want more of our international customers to have access to our buildings. In the past this has been a complicated process. Today we are running a limited time special on packages of 28mm and 15mm products. Each of these bundles will receive free shipping. That's right just order from the overseas special package that we have put together and we will ship it to you free of shipping charges.
This is only for the products in the package, and you can not add to this order. The main reason for this is they all have to fit into one shipping box, and each country has different shipping requirements. If you want additional items with this order, send me an e-mail, firstname.lastname@example.org, and he will work with you for a quote to ship other items to you.