(1) If a party, without reasonable excuse, contravenes an order of the court made under this part, the court may—
(a) if the party is a plaintiff or other claimant—order that all, or a stated part, of the party's proceeding be struck out, dismissed or stayed; or
(b) if the party is a defendant or respondent—order that the party not be allowed to defend all, or a stated part, of the proceeding against the party.
(2) This rule does not limit any other power of the court in relation to the contravention.