Boroondara Crime Investigation Volume Crime Unit detectives are investigating following a theft from a car in Balwyn North and subsequent deception in Watsonia last month.
Investigators have been told an unknown offender stole a wallet from a vehicle parked in Pavo Street, Balwyn North about 7am on Friday 16 August.
Later that morning, credit cards from the stolen wallet were used to make purchases from a service station in Watsonia about 8.35am.
Detectives have released an image of a man who they believe may be able to assist with their enquiries.
The man is perceived to be Caucasian in appearance, aged in his late 30s, with missing teeth.
He was wearing a Caterpillar black hoodie with grey sleeves
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au