(1) This section applies to the following decisions of the Commission made in relation to an amount paid, or purported to have been paid, by way of pension, allowance or other pecuniary benefit under the Social Security Act or the Social Security Act 1947 (in this section called the social security amount ):
(a) a decision to recover a recoverable amount in relation to the social security amount by deductions under subsection 205(2);
(b) a decision to give a notice to a person under section 205A in respect of a debt due to the Commonwealth in relation to the payment of the social security amount.
(2) A decision to which this section applies shall be taken for the purposes of the Social Security Act to be a decision made under that Act by an officer (other than the Secretary) of the Department administered by the Minister administering that Act.