See...I dont give me details to someone who called me. I know its rude but I dont trust anyone on the phone unless I have called them in regards to my account.

I answer them with

how about you tell me...you did ring me now didnt you

and if they get nasty I ask them to send me something in writing and then I will contact them

I do the same when people ring me and im the wrong number....they ask me who are you and I say you tell me, you rang.

Be buggered if I am going to give out ANY of my details to any Tom, DFick or Harriet on the when I dont know who they are. You wouldnt do it for an email asking for the same info now would you?

Give them a call and check for yourself, if its not legit Id defently be reporting it