Submit form LS223 to make a claim regarding unpaid wages, unpaid wage supplements, minimum wage or overtime violations, illegal deductions. Certify for Weekly Unemployment Insurance Benefits.Gather information you will need to file your complaint. Submit your proof of employment using TWC's online UI Submission Portal for the fastest review. Explain as clearly as possible what happened, why you believe it happened, and how you were discriminated against. For questions, compliments or complaints, call 800-628-5115. To search for current employment opportunities and to apply online, you can visit our Careers page. If you've made a complaint to your servicer and it has not been resolved to your satisfaction, you can submit a complaint to us. When you file a claim, you will be asked for certain information, such as addresses and dates of your former employment. Harris to mediation.