They may have arranged to visit you, but need money to pay for the flight or visa.
They may tell you everything has been booked but their ticket has been stolen, and you need to send money quickly to get them on the next flight.
Fraudsters may also use the conversations you have to find out enough personal information about you to commit identity fraud.
They’ll ask innocent-looking questions about you that make it look like they just want to get to know you, such as your date of birth, home address or family background.
Ms Rickard said the ACCC did not have the resources to police the huge number of incidents being reported to them each year and catching just one scammer was incredibly difficult.