Before considering any proposed wheat development program or amendment, the Director may require the sponsors to deposit an amount not to exceed $5,000 to defray the expenses of preparing, holding hearings, and conducting the referendum on the wheat development program or amendment. Any funds received by the Director shall be deposited with the State Treasurer as ex-officio custodian and held separate and apart from any other public moneys of this State in a trust fund designated as the Wheat Commodity Trust Fund. Money in the Fund may be disbursed only upon a voucher or order issued by the Director and paid by a warrant drawn by the State Comptroller and countersigned by the State Treasurer. The Director shall order disbursements from the Wheat Commodity Trust Fund only for payment of the expenses authorized by this Act. Any funds collected beyond actual expenses shall be refunded to the sponsors. The treasurer of the wheat development board shall reimburse the sponsors in the amount of the deposit, less any refunds, from fees received under the program if a program is established.