Darebin Crime Investigation Unit detectives are investigating the use of a stolen credit card in Northcote last month, Victoria Police say.
Investigators believe that a man entered a shopping centre on 22 November and used the card at a number of stores to purchase various items.
The man is perceived to be African in appearance with short hair, aged between 20-40 years old and is about 183cm tall.
He was wearing a red singlet and grey tracksuit pants. The man also had an earring in his left ear and a distinctive tattoo on his upper right arm.
Investigators have released images of the man and tattoo who they believe may be able to assist with their enquiries.
Anyone with information is urged to contact Crime Stoppers.