Re: Unfortunately,
"Calling me up and then demanding I pass 'security' is one of my pet hates."
Yeah, the NatWest tried that one on me a few years ago.
I told them that if they really are who they claimed to be, they will have my account information so tell me any two direct debits and how much they are for.
Person began with excuses. I think they were trying to tell me they were sales and didn't have that information. I don't know, I just spoke over them to say "authentication failed" and hung up.
If you call ME then it is YOU that must pass "security", not the other way around.