The scam was a reminder to the wider community never give out their pin, Mr Albert said.
Investigations were underway into two cases which had occurred recently on the North Shore.
In both cases the victim's belongings were stolen from their workplaces when they were distracted, including a reception desk and behind a shop counter.
Hours later the victim receives a fraudulent phone call from a woman claiming to be calling from Countdown supermarket and tells the victim that they have won a grocery hamper worth $500.
Police say the caller is very convincing and tells the victim that they need to provide a four-digit security number so that when they go to pick up the hamper from the supermarket they can be identified as the winner.
Police say they are following strong lines of enquiry, but warn that the offenders are very convincing.
Anyone with information is asked to contact North Shore police on 09 213 7811 or alternatively they can leave information anonymously through Crimestoppers on 0800 555 111.