As is unfortunately the case, Apple is quite restrictive about what you can share across country borders. Copyrighted work I can see why, but iCloud storage...
I have a UK account that I joined in a family share with a non-UK account. I believe I initially changed my account store to non-UK to allow the link up, and then changed it back thinking that would do the trick. This has led to the non-UK account being associated with the UK store, rendering previous purchase updates impossible.
I have a payment method for both the UK and non-UK regions, but would like to keep my UK account. What would be anyone’s suggestions on how to circumvent this limitation?