(a) If the commission finds that a billing utility violated this subchapter, the commission may implement penalties and other enforcement actions under Chapter 15.
(b) If the commission finds that any other service provider or billing agent subject to this subchapter has violated this subchapter or has knowingly provided false information to the commission on matters subject to this subchapter, the commission may enforce the provisions of Chapter 15 against the service provider or billing agent as if it were regulated by the commission.

(c) Neither the authority granted under this section nor any other provision of this subchapter shall be construed to grant the commission jurisdiction to regulate service providers or billing agents who are not otherwise subject to commission regulation, other than as specifically provided by this chapter.
(d) If the commission finds that a billing utility or service provider repeatedly violates this subchapter, the commission may, if the action is consistent with the public interest, suspend, restrict, or revoke the registration or certificate of the telecommunications service provider, retail electric provider, or electric utility, by this action denying the telecommunications service provider, retail electric provider, or electric utility the right to provide service in this state, except that the commission may not revoke a certificate of convenience and necessity of an electric utility except as provided by Section 37.059 or a certificate of convenience and necessity of a telecommunications utility except as provided by Section 54.008.
(e) If the commission finds that a service provider or billing agent has repeatedly violated any provision of this subchapter, the commission may order the billing utility to terminate billing and collection services for that service provider or billing agent.
(f) Nothing in this subchapter shall be construed to preclude a billing utility from taking action on its own to terminate or restrict its billing and collection services.