Argh. Phone security. My father's iPhone is signed out of it's Apple ID. He can't remember the password. I had set up two factor, but used my own phone number (on Android) as the two factor number. When I attempt to reset it, I suspect it tries to send an Apple message to my phone instead of his.
Can you access via a Mac desktop or laptop?
Yeah I was able to sort it. I was trying initially on a desktop, but it wouldn't send the two factor message. Perhaps there is a delay. I was able to do it from his phone. I've changed the two factor number to his own, and changed the password and noted it. Seems every time I visit them, iPad is full, iPhones are full....