1 Texas Administrative Code § 6.81 – Charges; Payment of Money; Refunds
(a) Any fee or charge payable to the agency shall be paid in advance, unless satisfactory arrangements for subsequent payment are approved by the executive director.
(b) Money paid by actual mistake or in excess, such as a payment not required by law, may be refunded. A mere change of purpose after the payment of money, as when a party desires to withdraw a filing, will not entitle a party to a refund.