"If a requirement under paragraph (1) or (3) is not complied with, a tribunal, before or at the hearing, may strike out the whole or part of the originating application ... but a tribunal shall not so strike out or direct unless it has sent notice to the party who has not complied with the requirement giving him an opportunity to show cause why the tribunal should not do so."
"Before making an order under subparagraph (d), (e) or (f) of paragraph (2) the tribunal shall send notice to the party against whom it is proposed that the order should be made giving him an opportunity to show cause why the order should not be made ; but this paragraph shall not be taken to require the tribunal to send such notice to that party if the party has been given an opportunity to show cause orally why the order should not be made."