determination does not meet the requirements for certification as a participating candidate with respect to such cycle, the candidate shall immediately remit to the Commission the amount withheld. (b) Exception for expenses incurred as a result of contested election (1) In general A candidate may withhold from the amount required to be remitted under subsection (a) the amount of any authorized expenditures which were incurred as the result of a legal challenge to the results of the election, except that any amount withheld pursuant to this paragraph shall be remitted to the Commission not later than 120 days after the date of the election to which such subsection applies. (2) Documentation required A candidate may withhold an amount of an expenditure pursuant to paragraph (1) only if the candidate submits documentation of the expenditure and the amount to the Commission not later than the deadline applicable to the candidate under subsection (a). D Enhanced Match Support 531. Enhanced support for general election (a) Availability of Enhanced Support In addition to the payments made under subtitle A, the Commission shall make an additional payment to an eligible candidate under this subtitle. (b) Use of funds A candidate shall use the additional payment under this subtitle only for authorized expenditures in connection with the election involved. 532. Eligibility (a) In General A candidate is eligible to receive an additional payment under this subtitle if the candidate meets each of the following requirements: (1) The candidate is on the ballot for the general election for the office the candidate seeks. (2) The candidate is certified as a participating candidate under this title with respect to the election. (3) During the enhanced support qualifying period, the candidate receives qualified small dollar contributions in a total amount of not less than $50,000. (4) During the enhanced support qualifying period, the candidate submits to the Commission a request for the payment which includes— (A) a statement of