(1) The commission may, but need not, reopen a complaint if—
(a) the complaint was closed under section 78 (1) (c) because the complainant had not complied with a requirement mentioned in the paragraph; and
(b) the complainant complies with the requirement.
(2) If the requirement was a requirement to do something by a stated time, the requirement is taken to have been complied with for subsection (1) even though the complainant did not do it within the required time.