This article explains what demand letters are, when they are useful, and how to write them. In this article, readers will find a comprehensive example collection letter sample designed to maximize response rates and ensure clarity.Money Owed Demand Letter – Strictly for debts or outstanding balances. In this article, we discuss how to write a demand letter, what to include in a demand letter, and provide a Texas demand letter template. Select "Texas Debt Claim Petition" from the list of types of filings. I request validation of this debt per Texas Finance Code. I have disputed this debt with the credit reporting agencies and you continue to validate it. Usually, creditors will help you catch up. An overpayment is caused when Texas Workforce Commission (TWC) pays unemployment benefits that you were not eligible to receive. Your demand letter should be firm but fair.