10.22.—(1) The petitioner may, if the petition has not been served, apply to the court to appoint another day for the hearing.
(2) The application must state the reasons why the petition has not been served.
(3) Costs of the application may not be allowed in the proceedings except by order of the court.
(4) If the court appoints another day for the hearing, the petitioner must as soon as reasonably practicable deliver notice of that day to any person who delivered notice of intention to appear under rule 10.19 and to any person who must be served with a copy of the petition under rule 10.14.