If the relevant acquisition was covered by an exemption certificate of a kind not mentioned in section 44 , the amount of the vacancy fee is equal to:
(a) the fee worked out under Division 7 of Part 2 that was payable by the person when applying for that certificate; or
(b) if the fee mentioned in paragraph (a) was waived--the amount of the lowest fee worked out under that Division that can be payable by a person when applying for a certificate of that kind.