From their site:
The best way to file a Consumer Fraud complaint/report is to call (713) 755-5836 between the hours of 8:00 am and 5:00 pm, Monday through Friday and request that a complaint package be mailed to you. This package will have some written instructions and a one-page (front and back) form to be filled out and returned. Several members of the Consumer Fraud staff are bilingual (English and Spanish). Our forms are available in English and Spanish. Our staff is familiar with the types of matters that this division investigates and can provide additional information to assist you in filing your complaint, if needed.Also please be aware that if you have been successful in getting your credit card company to recover funds from TM - TM has turned around and charged an alternative amount to that same account. Be careful out there!