An internal review application must—
(a) be made within the following period—(i) 28 days after the applicant is given notice of the reviewable decision to which the application relates or otherwise becomes aware of the decision; or(ii) a longer period allowed by the internal reviewer, whether before or after the end of the 28-day period mentioned in subparagraph (i) ; and
(b) be lodged at an office of the commission.