Tex. Bus. & Com. Code § 54.004
A principal who fails to comply with a provision of a contract under Section 54.002 relating to payment of a commission or who fails to pay a commission as required by Section 54.003 is liable to the sales representative in a civil action for:
(2) reasonable attorney's fees and costs.
Acts 2007, 80th Leg., R.S., Ch. 885 (H.B. 2278), Sec. 2.01, eff. April 1, 2009.