Subject to the provisions of this section, where a person gives notice of appeal and, before the appeal is determined by the tribunal, the inspector or other proper officer of the Crown and the appellant come to an agreement, whether in writing or otherwise, that the assessment or decision under appeal should be treated as upheld without variation, or as varied in a particular manner or as discharged or cancelled, the like consequences shall ensue for all purposes as would have ensued if, at the time when the agreement was come to, the tribunal had determined the appeal and had upheld the assessment or decision without variation, had varied it in that manner or had discharged or cancelled it, as the case may be.
Subsection (1) of this section shall not apply where, within thirty days from the date when the agreement was come to, the appellant gives notice in writing to the inspector or other proper officer of the Crown that he desires to repudiate or resile from the agreement.
Where an agreement is not in writing—
Where—
the preceding provisions of this section shall have effect as if, at the date of the appellant's notification, the appellant and the inspector or other proper officer had come to an agreement, orally or in writing, as the case may be, that the assessment or decision under appeal should be upheld without variation.
The references in this section to an agreement being come to with an appellant and the giving of notice or notification to or by an appellant include references to an agreement being come to with, and the giving of notice or notification to or by, a person acting on behalf of the appellant in relation to the appeal.