A phone and bank card were stolen from the reception desk of business premises in Church Street last week.
The incident took place between 3pm and 3.05pm on Wednesday, April 16.
The phone was a Samsung Galaxy.
Police are appealing to anyone who has information in relation to the incident to contact them in Portadown on the 101 non-emergency number, quoting ref: 811160414.
If you prefer to provide information without giving your details you can contact the independent Crimestoppers charity anonymously on 0800 555 111.