An insurer or an agent of an insurer may not make an insurance contract or an agreement relating to an insurance contract other than as expressed in the policy issued in connection with the contract.
Tex. Ins. Code § 543.002
An insurer or an agent of an insurer may not make an insurance contract or an agreement relating to an insurance contract other than as expressed in the policy issued in connection with the contract.
Tex. Ins. Code § 543.002