What information should be included in my paidinfull letter? Have you recently settled a debt and are searching for a paid in full letter?Good news, we've got two free sample form letters below. If you send a paid in full letter to your creditor or debt collection agency, it informs them that you're making your final payment. A debt validation letter is a written communication that a consumer sends to a debt collector or creditor to request verification and validation of a debt. Today's Date: Collector's Name: Collector's Address : RE: Account of. List your name, account information, the original creditor of the debt, and the debt collection agencies identifying information. The sample letter below will help you to get details on the following: • Why a debt collector thinks you owe this debt. A demand letter is an official notice requesting money, possession of assets, or action on a legal matter. If you ever need to prove that a debt is fully paid and can no longer be collected, then a paidinfull letter can be your best friend.