22.—(1) Any irregularity resulting from failure to comply with any provision of these Rules or of any direction of the Panel before the Panel has reached its decision shall not of itself render the proceedings void.
(2) Where any such irregularity comes to the attention of the Panel, the Panel may give any directions it considers necessary, before reaching its decision, to cure or waive the irregularity.
(3) Clerical mistakes in any document recording a direction or decision of the Panel, or errors arising in such a document from an accidental slip or omission, may be corrected by the Panel by certificate in writing.