Icloud3 authentication not triggered?

I’ve been playing about with the icloud3 integration and am not getting it to authenticate. Home assistant displays the authentication notification, but i never get the notification on my phone.

I’ve tricked it slightly by logging in on a browser elsewhere and getting the 2fa code and using it. It says it’s authenticated my icloud account, but later it says FmF or FamShr tracking method is disabled until verification complete.

It’s my daughters phone i want to track so using the iosapp is not desirable.

Any ideas?