Police are warning retailers to be alert to a fraud scam in the eastern suburbs.
Yarra Ranges police said a group of young people were attending food outlets, making a small purchase and claiming their tap-and-go didn’t work.
They then hold the EFTPOS machine and refund large amounts of money into their accounts.
There have been incidents at Chirnside Park, Lilydale and Mount Evelyn.
“Don’t let your business be the next victim,” police warned.
Detective Van Den Heuvel from Lilydale is investigating the scams.