the smiling fraudsters were unaware they had been caught by a pin-hole camera in the atm as they withdrew the pensioner 's cash on march 17 .
the crooked pair had earlier posed as bank staff on the phone and convinced their vulnerable victim his debit cards needed to be recalled for security .
the smiling fraudsters were unaware they had been caught on a pin-hole camera in the atm as they withdrew the pensioner 's cash .