Monash Crime Investigation Unit detectives are appealing for public assistance after a 94-year-old man was scammed out of nearly $10,000.
The Mount Waverley man received a phone call from a person purporting to be from a telecommunications company on 19 September.
The scam caller requested the victim's banking details over the phone and was then advised to leave his bank cards in a letterbox to be reissued at a later date.
The offender then stole the victim's cards and used them to purchase four new iPhones at a cost of $9000 at a store in Malvern East and another store in Chadstone later that afternoon.
The thief also attempted to purchase $4500 worth of electronics at another store in Chadstone but the transaction was declined.
It is understood the offender also attempted to withdraw money using the elderly man's cards at ATM's on High Street in Ashburton and Hamilton Place in Mount Waverley.
Police have released images of a man that they believe may be able to assist with their enquiries.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or visit www.crimestoppersvic.com.au