Re: Because data protection
Yes they need to provide a way that the customer can phone them back (on a publicly published number). Unfortunately last time I asked a caller from my companies bank what department I needed to ask for, they said the call centre couldn't put me through to his particular department. IIRC it sounded like it would have been to our advantage.
I should have done I'll tell you one of my data points if you'll tell me one then another from each side and so on.