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(3) The administration fee is payable quarterly, within two months after the end of each quarter.
(5) When the lessor is unable to provide one or more of the statements required by subsection (4) in respect of a year, the Minister shall notify the lessor
(a) that for that year, the lessor may make the payments referred to in subsection (3), except the payment for the last quarter, on the basis of estimates of the amounts payable; and
