Tennessee Code Title 56. Insurance § 56-7-1115

(a) Any insurance company processing a claim submitted on behalf of an insured by a person who is engaged in automobile glass replacement or glass repair services or the provision of automobile glass products to whom the insured has assigned benefits under an insurance policy may refuse payment of any claim which involves an unfair, deceptive and/or fraudulent practice as provided in §§ 56-7-1113 -- 56-7-1116.

(b) When there is reason to believe the practices may have occurred, insurance companies may require verified proof that the insured has, in fact, fully incurred and paid any deductible and/or co-payment required under the insurance policy.