Allied Newspapers Ltd has filed a judicial letter through the civil courts demanding that its former managing director refund company money he used without authorisation.
The company is calling on Mr Hillman to repay amounts spent on company credit cards or transferred to other bank accounts without authorisation or documentation, money related to the unauthorised purchasing of cars using company funds, and money spent on "unilateral and abusive" wage increases paid to himself.
Mr Hillman was suspended by the company last March, after his name cropped up in the Panama Papers affair. He was managing director of Allied Newspapers at the time, as well as non-executive chairman of its sister company Progress Press Ltd.
The judicial letter concluded by stating that it was filed for the purposes of interrupting legal prescription to prevent any legal action on the part of the company from being time-barred.