Texas Occupations Code - OCC § 1304.161. Prohibited Acts

(a) A provider, administrator, seller, or other representative of the provider may not, in the provider's service contracts or literature or in any written communication:

(b) A person, including a bank, a savings and loan association, a lending institution, or the manufacturer or seller of a product, may not require the purchase of a service contract as a condition of a loan or the sale of property.

(c) A provider, administrator, seller, or other representative of the provider may not make a telemarketing call to a consumer as provided by Sections 304.002 and 304.003, Business & Commerce Code, unless the provider, administrator, seller, or representative has an established business relationship, as defined by Section 304.002, Business & Commerce Code, with the consumer.