(1) The Executive may make an advance on account of compensation that may become payable to a person under this part.
(2) The Executive must make an advance on account of compensation under this part if the Executive has—
(a) accepted a claim for compensation and made an offer of compensation to the person; or
(b) made an offer of compensation to the person under section 61A (2) (Executive may make offer of compensation where no claim is made).
(3) An advance under subsection (2), when added to advances to the same person in relation to the same compensation under subsection (1), must be not less than 90% of the amount of the Executive's offer of compensation.
(4) The mere receipt by a person of an advance on account of compensation does not constitute an acceptance of any offer made by the Executive.