gotcha!

i just received a call from a person pretending be someone else. as part of our opening spiel every onset of calls, we need to verify the caller at least 2 pieces of personal info. my caller has verified correctly the infos however, it was very suspicious. i asked for the date of birth. the true person/cardmember was born year 1932. the caller's voice was so active, so young sounding, so irate, so defensive. the usual calls i receive from the oldies often turned out to be light. they are the ones who call me sweetie, dear, darling,my son. and this particular call i received lately was no match. my credibility was even questioned and said, i was slow and seemed not wiling to help because i ask so many questions. the caller wants to get things done right away. instinct dictated the best thing i need to do. which is to probe some more. when i ask.."how can i help you today?" she said. "my grannny lets me use her card and why in the world am i having hard time using it?" ..THAT'S IT..! i told the caller to let her granny call us. i immediately block the account and insisted, let the real cm give us a call.