(1) Where:
(a) a member of the scheme who is a contributing member retires;
(b) upon his retirement, he receives, or is entitled to receive, a refund of contributions under section 56;
(c) he again becomes an eligible member of the Defence Force within a period of 90 days after his retirement; and
(d) he elects, by notice in writing given to CSC, within a period of 90 days after he again becomes an eligible member of the Defence Force, or within such further period as CSC, in special circumstances, allows, to have his retirement disregarded;
this Act applies to and in relation to him as if he had not retired and as if he had, during the period during which he was not a member, been on leave of absence without pay.
(2) An election by a person under subsection (1) is of no effect unless, within a period of 7 days after the date on which the election was made, or, within such further period as CSC, in special circumstances, allows, the contributions refunded to him are repaid by him to the Commonwealth or arrangements satisfactory to CSC are made for them to be repaid to the Commonwealth.
(3) This section does not apply in relation to a person who is taken to have retired under section 5B.