(1) Where a person makes an election under section 64 to commute a pension to which this Division applies, there shall be paid to the person a lump sum benefit equal to his or her accumulated contributions and:
(a) he or she is not entitled to the pension; and
(b) spouse's additional pension is not payable under subsection 93(1) to a spouse of the person.
(2) Where a lump sum benefit is payable under subsection 57(2), paragraph 57AA(2)(c), subsection 61(2) or paragraph 61AB(2)(c) to a person who has made or makes an election under section 64, subsection (1) of this section has effect in relation to him or her as if the reference in that subsection to his or her accumulated contributions were a reference to the amount of those contributions reduced by the amount of the lump sum benefit payable under subsection 57(2), paragraph 57AA(2)(c), subsection 61(2) or paragraph 61AB(2)(c).
(3) Where a person who is entitled to:
(a) additional age retirement pension by virtue of section 57A; or
(b) additional early retirement pension by virtue of section 61A;
has made or makes an election under section 64, subsection (1) of this section has effect in relation to the person as if the reference in that subsection to the person's accumulated contributions were a reference to the person's accumulated basic contributions.