The commission may adopt and enforce rules to:
(1) require certification or registration with the commission as a condition of doing business in this state;
(2) amend certificates or registrations to reflect changed ownership and control;
(3) establish rules for customer service and protection;
(4) suspend or revoke certificates or registrations for repeated violations of this chapter or commission rules, except that the commission may not revoke a certificate of convenience and necessity of a telecommunications utility except as provided by Section 54.008; and
(5) order disconnection of a pay telephone service provider’s pay telephones or revocation of certification or registration for repeated violations of this chapter or commission rules.