“(1) If the basis of the administrator’s remuneration or the liquidator’s remuneration in a voluntary winding up is not fixed under rules 18.18 to 18.20 (as applicable) then the administrator or liquidator must apply to the court for it to be fixed. (2) Before making such an application the liquidator or administrator must attempt to fix the basis in accordance with rules 18.18 to 18.20. (3) An application under this rule may not be made more than 18 months after the date of the administrator’s or liquidator’s appointment.”