M0nica
Anyone, other than the mentally impaired, who even begins a telephone conversation with an unknown person ringing out of the blue and not immediately stating clearly who they are and what they are ringing about, and you were expecting the call, deserves everything they get.
To be totally fair, in the past I have had quite genuine sounding calls from couriers, about packages I actually was expecting etc, only it wasn't real, they are somehow very clever and get enough snippits of info to sound plausible, add in busy people and trained people pleasers, dangerous cocktail, anyone is capable of being fooled, weak moment, good timing, tired not thinking.. none of us are totally foolproof