Why is 'Secrets, Lies and Fireflies' not available on Apple Books?

I preordered and payed for the book “Secrets, Lies and Fireflies” through Apple Books. The book was released on 03/07/25 but when I went in to load the book I get the message “Item Not Available, The item you’ve requested isn’t in the store for your country or region”. Can you help with this problem?

[Re-Titled by Moderator]