(1) This section applies if:
(a) an amount (the affected amount ) was paid to a person by way of a service pension, income support supplement or a veteran payment in respect of a particular period; and
(b) another amount (the lump sum ) was paid as a lump sum:
(i) to the person; or
(ii) to the person's partner, if the person is a member of a couple;
by way of a payment of arrears of a comparable foreign pension in respect of that period; and
(c) assuming that the lump sum had been paid by way of periodical payments of the comparable foreign pension in respect of that period, the affected amount would have been reduced.
(2) The amount by which the affected amount would have been reduced is a debt due by the person to the Commonwealth.
(3) Section 46A does not apply to the person in respect of the lump sum.