; (B) once every week after the period described in subparagraph (A) and until the date that is 21 days before the election; and (C) once every day after the period described in subparagraph (B). (4) Limitation on regulations The Commission may not prescribe any regulations with respect to reporting under this subsection with respect to any election after the date that is 180 days before the date of such election. (e) Appeals The Commission shall provide a written explanation with respect to any denial of any payment under this section and shall provide the opportunity for review and reconsideration within 5 business days of such denial. 524. Political advertising vouchers (a) In general The Commission shall establish and administer a voucher program for the purchase of airtime on broadcasting stations for political advertisements in accordance with the provisions of this section. (b) Candidates The Commission shall only disburse vouchers under the program established under subsection (a) to participants certified pursuant to section 515 who have agreed in writing to keep and furnish to the Commission such records, books, and other information as it may require. (c) Amounts The Commission shall disburse vouchers to each candidate certified under subsection (b) in an aggregate amount equal to the greater of— (1) $100,000 multiplied by the number of congressional districts in the State with respect to which such candidate is running for office; or (2) the amount determined by the Commission under section 531. (d) Use (1) Exclusive use Vouchers disbursed by the Commission under this section may be used only for the purchase of broadcast airtime for political advertisements relating to a general election for the office of Senate by the participating candidate to which the vouchers were disbursed, except that— (A) a candidate may exchange vouchers with a political party under paragraph (2)