Surrey Police is appealing for witnesses following a report of a robbery on Ash Court on Friday (January 9) between 11.50pm and 11.56pm.
A moped was stolen, and the victim was approached and assaulted, receiving minor injuries.
Surrey Police is looking to speak to eight to 10 boys who were seen in the area at the time.
They have been described as white, between 15-16-years-old and of skinny build.
They were wearing all black tracksuits with hoods up and some with face coverings.
Anyone with any information that might assist the investigation should call Surrey Police, quoting PR/ 45260003130 or call Crimestoppers anonymously on 0800 555 111
