After section 18B insert:
18C—Amount of grant must not exceed consideration
If, by virtue of an additional payment under section 18(2) or a first
home bonus grant under section 18B, the total amount payable to an
applicant for a first home owner grant would, but for this section, exceed the
consideration for the eligible transaction, the additional payment or the
first home bonus grant will, as determined by the Commissioner, be adjusted so
that the total amount payable to the applicant is equal to the amount of the
consideration.