Prior to the consideration of any proposed marketing program or amendment, the Director may require the applicants therefor to deposit with him such funds, not to exceed $5,000, as may be necessary to defray the expenses of preparing, holding hearings and conducting the referendum on such marketing program or amendment. Such funds shall be deposited and distributed in accordance with Section 18 of this Act. Any funds collected beyond actual expenses shall be refunded to the applicants on a pro rata basis. The applicants shall be reimbursed by the treasurer of the program operating board in the amount of the deposit, less any refunds, from fees received under such program if such program is established.