Contact a CDC Regional Office in Your Area. Austin, Texas Phone: (512) 427-1350, or (877) 953-5535.The State Bar of Texas presents the information on this web site as a service to our members and other Internet users. The first step in filing a grievance is to complete a grievance form either through the Bar's online submission system, located at cdc.texasbar. The packet includes instructions for filing and the complaint form. The complaint needs to name the party or parties you are filing against.