(1) A person who is dissatisfied with an assessment made by the Commissioner for the purposes of this Act, may, within a period of 42 days after the date of issue of that assessment, object to the assessment by forwarding to the Commissioner a statement in writing of the grounds of his objection to the assessment.
(2) A person entitled to make an objection may, whether before or after the expiry of the time for making the objection, apply for an extension of time, and the Commissioner may, for reasonable cause shown by that person, extend the time for making the objection for such period as the Commissioner considers reasonable in the circumstances.
(3) The Commissioner shall consider any objection and may allow or disallow the objection wholly or in part and may modify or confirm the assessment to which the objection relates.
(4) The Commissioner shall inform the person by whom the objection was made, in writing, of his decision on the objection and the grounds for that decision.
(5) If an assessment of duty is modified under subsection (3), the amount of duty payable shall be such amount as is fixed by the Commissioner; and the Commissioner shall refund the amount of any excess of duty which may have been made in accordance with the assessment and the amount of any excess of any fine charged under section 20 or 31AC.
(6) For the purposes of this section and sections 33 and 34A the term 'assessment' shall include a reassessment issued under section 31AA or 76AW and any determination or decision made or purported to be made, or direction given or purported to be given, by the Commissioner under the provisions of this Act other than under this section, section 33, section 75JA(3) or section 75JB(7).