Examinations and audits; repayments

After each matching payment period, the Commission shall conduct a thorough examination and audit of the qualified campaign expenses of every candidate and his authorized committees who received payments under section 9037. If the Commission determines that any amount of any payment made to a candidate from the matching payment account was used for any purpose other than— No notification shall be made by the Commission under subsection (b) with respect to a matching payment period more than 3 years after the end of such period. All payments received by the Secretary under subsection (b) shall be deposited by him in the matching payment account.