23.—(1) If a party has not complied with a direction to it under this Part of these Regulations within the time specified in the direction the tribunal may—
(a)where the party in default is the parent, dismiss the appeal without a hearing;
(b)where the party in default is the board, determine the appeal without a hearing; or
(c)hold a hearing (without notifying the party in default) at which the party in default is not represented or, where the parties have been notified of the hearing under regulation 24, direct that neither the party in default nor any person whom he intends should represent him be entitled to attend the hearing.
(2) In this regulation “the party in default” means the party which has failed to comply with the direction.