For those who bought Towa's limited birthday goods on Geekjack, you need to pay the shipping fee separately now. You should have gotten an e-mail about the details, but basically you just need to order
https://shop.geekjack.net/products/shipping-fee-for-towa-202108 using the same account you bought the goods on.
You only need to do this if you bought the limited set, if you bought the normal one, shipping was already calculated when you ordered.