The offence took place at the Boozepoint shop on Bolton Road just before 3pm on Tuesday 14th August when a woman has allegedly defrauded the shopkeeper out of £50 by deliberately confusing her when requesting to change a note.
The woman is described as white, slim, aged in her 20s with long purple hair. She was wearing a baseball cap, pink t-shirt, black jacket and blue jeans.
Police are urging other shopkeepers to be vigilant.
“It is possible this fraud may have been attempted elsewhere so I would urge shops to be watchful and to report any concerns to police.
People with information can also contact the independent charity Crimestoppers anonymously on 0800 555 111 or on-line at Crimestoppers-uk.org. No personal details are taken, information is not traced or recorded and you will not go to court.