(a) An independent school district may not require a campus or campus program that has been granted a charter under Subchapter C, Chapter 12, and that is the result of the conversion of the status of an existing school district campus to pay rent for or to purchase a facility in order to use the facility.
(b) An independent school district may not require a campus or campus program described by Subsection (a) or an open-enrollment charter school to pay for any service provided by the district under a contract between the district and the campus, campus program, or open-enrollment charter school an amount that is greater than the amount of the actual costs to the district of providing the service.