I started a test order as well, I did not see anything that they do not ship to the USA. It will allow me to buy and it quotes a shipping cost. There is the message below on each item page.
IMPORTANT SHIPPING REMARKS
- Our Post Office has suspended all airmail services to Australia, Canada, France, Mexico and USA from 1 Jan 2022 until further notice. All express delivery orders to these countries can only be shipped when the services are resumed.
I see Max and Millia on BBTS, the item cost is much higher. But after shipping it is only about $17 more at BBTS.