26. (1) Subject to this section, a complaint—
(a) shall be in writing;
(b) shall be signed by the complainant; and
(c) shall disclose the name and address of the complainant.
(2) The Commissioner may accept a complaint that does not comply with subsection (1).
(3) Where the Commissioner accepts an oral complaint, he or she shall, unless satisfied that there are good reasons for not doing so, require that the complaint be put in writing and be signed by the complainant.
(4) Where the Commissioner becomes aware that a complainant has changed his or her name or address without notifying the Commissioner, the Commissioner shall require the complainant to provide his or her name or address.
(5) The Commissioner may, at any time, require a complainant—
(a) to provide further information or documents; or
(b) to verify all or any part of the complaint by statutory declaration.
(6) When making a requirement under this section the Commissioner shall fix a reasonable period of time within which the requirement is to be satisfied and may extend that period, whether before or after its expiry.