Tex. Prop. Code § 92.0191

A tenant may request that the landlord provide to the tenant a written statement of whether the tenant owes a late fee to the landlord and, if so, the amount of the late fee. On request of the tenant, the landlord shall provide the statement to the tenant by any established means regularly used for written communication between the landlord and the tenant. A landlord's failure to respond does not affect the tenant's liability for any late fee owed to the landlord.