9.—(1) The Department may, of its own motion or on the request of the applicant, reconsider its decision on any application for compensation under this Schedule on the ground that the decision was made in ignorance of, or was based on a mistake as to, some material fact.
(2) Where the Department decides of its own motion to reconsider a decision, it shall inform the applicant of that fact and of the grounds for reopening the case.
(3) A request by the applicant for reconsideration of the decision on his application must be made in writing to the Department within three months from the date on which the decision was notified to him, or such further period as the Department may allow.
(4) The provisions of paragraphs 6 to 8 shall, with the necessary modifications, apply in relation to the reconsideration of an application as they apply in relation to the original consideration of an application.