(A) A patient, patient’s estate, and patient’s liable relatives shall be jointly and severally liable for amounts charged by the department of mental health and addiction services in accordance with section 5121.33 or 5121.35 of the Revised Code. In no case shall any of the foregoing persons be liable for more than one hundred per cent of the full sum charged under section 5121.33 of the Revised Code.

(B) Collections of support payments shall be made by the department and, subject to meeting prior requirements for payment and crediting of such collections and other available receipts, in accordance with the bond proceedings applicable to obligations issued pursuant to section 154.20 of the Revised Code. The collections and other available receipts designated by the director of mental health and addiction services for deposit in the special accounts, together with insurance contract payments provided for in section 5121.43 of the Revised Code, shall be remitted to the treasurer of state for deposit in the state treasury to the credit of the mental health operating fund, which is hereby created, to be used for the general purposes of the department. The department shall make refunds of overpayment of support charges from the mental health operating fund.