(1) A decision of the Board on a review of a decision of the Commission of a kind referred to in paragraph 135(5)(a), (b), (c) or (d) shall, unless reviewed by the Administrative Review Tribunal and, subject to subsection (2) of this section, be binding upon the applicant and the Commission for a period of 6 months commencing on the day on which the Board makes that decision.
(2) If, during the period referred to in subsection (1), the applicant is of the opinion that his or her incapacity has increased, subsection (1) does not prevent:
(a) the applicant from making application under subsection 15(1) or (2) for an increased pension or for a pension; or
(b) the grant of an increased pension, or a pension, from a date within that period, by the Commission upon its consideration of such an application or by the Board upon review of the decision of the Commission on such an application.