How to use the template: 1. In the sample letter, fill in your personal information.We've included a sample credit report dispute letter that you can send to credit bureaus. Use this sample letter to dispute incorrect or inaccurate information that a business supplied to credit bureaus. This section contains information on The Chicago Manual of Style (CMOS) method of document formatting and citation. We'll show you how to create this document and also give you a sample of how it should look like. Example of a Credit Card Authorization Letter. Every debt collection letter must start with precise, professional contact details from your law firm and the client. Use this sample letter to dispute incorrect or inaccurate information that a business supplied to credit bureaus. Writing a debt validation letter can keep you from paying a bogus debt collection.