"Members of the public are reminded to exercise caution when receiving unsolicited phone calls or emails which [aim] to give them a benefit," police added.
People should never give out any personal details over the phone, including bank account details, pin numbers, passwords or personal information.
"If you have any doubts about the validity of any correspondence, ask for the caller's name and then call the company's generic phone number listed on their website or in the phonebook and ask to be transferred back to the person," police said.
"If something seems too easy or too good to be true, it often is, and you should always seek a second opinion from a loved one, close friend, or someone you trust," police said.