(1) The Secretary may, on request made in accordance with the rules (if any) , extend, by no more than 28 days:
(a) the acceptance period for an offer; or
(b) the 21 day period referred to in subsection 24 ( 3 ) or 26 (3) for applying for a review in relation to a refusal.
If the Secretary does so, the period is the period as extended by the Secretary.
(2) A period extended under paragraph ( 1)(a) must end on or before 31 December 2018 .
(3) A period extended under paragraph ( 1)(b) must end on or before 30 November 2018 .
(4) A request to extend a period must be received before the end of the original period.
(5) The Secretary may only extend a period once.