(a) A telephone company or telecommunications carrier may not do any of the following with respect to services regulated by the commission:

1. (1) upon request, fail to disclose in a timely and uniform manner information necessary for the design of equipment and services that will meet the specifications for interconnection;
2. (2) intentionally impair the speed, quality, or efficiency of services, products, or facilities offered to a consumer under a tariff, contract, or price list;
3. (3) fail to provide a service, product, or facility to a consumer other than a telephone company or telecommunications carrier in accordance with its applicable tariffs, price lists, or contracts and with the commission's rules and orders;
4. (4) refuse to provide a service, product, or facility to a telephone company or telecommunications carrier in accordance with its applicable tariffs, price lists, or contracts and with the commission's rules and orders;

5. (5) impose unreasonable or discriminatory restrictions on the resale of its services, provided that:

   1. (i) it may require that residential service may not be resold as a different class of service; and
   2. (ii) the commission may prohibit resale of services it has approved for provision for not-for-profit entities at rates less than those offered to the general public;
6. (6) provide telephone service to a person acting as a telephone company or telecommunications carrier if the commission has ordered the telephone company or telecommunications carrier to discontinue service to that person; or
7. (7) upon cancellation of telecommunications service, refuse to provide a prorated refund of payment made in advance by a customer.