(a) A claimant who prevails in a suit under this chapter shall be awarded:
(1) actual damages, including damages for mental anguish even if an injury other than mental anguish is not shown;
(2) court costs; and
(3) reasonable attorney's fees.
(b) In addition to an award under Subsection (a), a claimant who prevails in a suit under this chapter may recover exemplary damages.