(1) Subject to section 69, if an employer who has been given a claim is satisfied that the claimant:
(a) has information or a document that is relevant to the claim; or
(b) may obtain such information, or such a document or a copy of such a document, without unreasonable expense or inconvenience;
the employer may, by written notice given to the claimant, ask the claimant to give to the employer:
(c) the information, or the document or a copy of the document; or
(d) if paragraph (b) applies--a written authority to obtain the information or the document or a copy of the document.
(2) A claimant who has received a notice under subsection (1) is taken to have complied with the notice if the claimant gives the employer the information, the document or a copy of the document, or the authority, referred to in the notice.
(3) If a claimant, without reasonable excuse, does not comply with a notice under subsection (1), the employer may refuse to deal with the claim until the claimant gives the employer the information or the document or a copy of the document, or the authority, referred to in the notice.