I once got a call like this saying I could have free life insurance but just needed to confirm my details. He said he was from the Pru which is who we are with. He kept insisting that he couldnt issue it without my birthday or maiden name. I told him he must have these on my records in front of him. But I needed to confirm them. When I said I dont give that info over the phone., I was told that I wouldnt be able to get the insurance then. Good, I said and slammed down the phone. Any vulnerable person could have given in eventually. frightening, as Im continually telling my OH not to give info to any phone callers or doorstep callers, but once or twice have caught him nearly falling into the trap. He is very nieve about these things as I have always dealt with bills etc
I WOULD ADVISE NOT TO EVER GIVE INFO OUT TO ANYONE AT ALL, just to be on the safe side