At around 6.30am on Monday 7 October 2019, it is reported a man went into an office at the premises in Castle Way and stole a quantity of cash. It is alleged he assaulted two members of staff before leaving the building.
The suspect is described as being 6ft tall and was wearing a full balaclava, a padded jacket and ski gloves. He was also carrying a bag.
An investigation is ongoing, including forensic checks at the crime scene and a review of any possible CCTV opportunities.
Anyone with information which may assist the investigation is asked to call Kent Police on 01622 604100, quoting reference 7-0165.