Detectives are hunting a gang behind a £300,000 fraud.
The scam involves credit cards which are stolen from Australia or New Zeland and then used to buy goods in the UK.
Items including babywear, cosmetics and food, has been ordered and delivered to various locations around the Southend area where gang members were waiting to collect them.
The business delivers the goods but never receive the payment.
Police want to trace these two men who they suspect are involved.
Anyone with information should contact Det Con Bob Evans or his colleagues at Southend CID on 101 or call Crimestoppers anonymously on 0800 555111.
Two men aged 32 and 41 and two women aged 27 and 32, and all from the Southend area, have been arrested on suspicion of fraud and have been bailed until April pending further enquiries.