24.—(1) A penalty notice may be withdrawn if the Secretary of State has reason to believe that it ought not to have been given (whether to the person named in the penalty notice or otherwise).
(2) A penalty notice may be withdrawn by the Secretary of State giving notice to the person named in the penalty notice before or after payment of the penalty.
(3) Where a penalty notice is withdrawn, the Secretary of State must repay any penalty paid under the penalty notice to the person named in the penalty notice within 28 days, beginning with the date on which notice of the withdrawal of the penalty notice was sent.