(a) a person applies for AAT second review of a decision; and
(b) the AAT makes an order under subsection 41(2) of the AAT Act; and
(c) as a result of the order, the amount that has in fact been paid to the person by way of social security payment is greater than the amount that was payable to the person;
the difference between the amount that was in fact paid to the
person and the amount that was payable to the person is a debt due to the
Commonwealth.