Happened to me when I saw a book on the US site, I wasn’t able to see all reviews, but there was a button to sort-of “apply” to get approved for seeing all of them.
It took five days, then I got this email.
Interestingly, they’re not doing this on the European site, you can still see all reviews there.
I would, but family won’t go. Can’t leave my kids. At least I can get them EU passports through my own, then they can leave if they need to.