Whittlesea Crime Investigation Unit detectives are investigating following a number of deception offences across the northern suburbs in September.
On the first occasion, a man called a commercial business, located on Woolsley Place in Thomastown and placed an order for a large amount of specialty clothing, valued at almost $2,000 on 8 September.
He placed the order using stolen credit card information.
Approximately 40 minutes after placing the order, the man arrived at the store in a black Mercedes sedan to collect it.
He was dressed in a grey t-shirt, dark pants and was wearing work boots.
The man was also wearing a distinctive white hard hat with the name 'Mick' on the back of it.
CCTV has been released of the man in the hope someone recognises him and contacts investigators.
Similar orders were placed using the same stolen credit card details at businesses in Craigieburn, Preston, Tullamarine, Laverton North, Brooklyn, Niddrie, Campbellfield and Thomastown between 8 and 10 September.
Police believed that at least $15,000 in stock has been stolen from the businesses.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au
