(a) Except as provided in paragraphs (b) and (c) of this section, the Department of the Treasury shall not refund a filing fee in whole or in part.

(b) If the Committee determines that the transaction is not a covered transaction, the filing fee shall be refunded.

(c) In response to a petition by a party, if the Staff Chairperson determines, based on the information and representations contained in the formal written notice, as well as any other information provided by the parties, that a party or the parties to a transaction paid a filing fee in an amount greater than required at the time of filing, the Department of the Treasury shall refund the amount of overpayment to the party or parties who paid the filing fee.