How to use the template: 1. In the sample letter, fill in your personal information.This e-book provides templates for 21 most effective credit and collection letters that will help you communicate better with your customer. Get your free copy here! Download our sample letter and instructions to submit a dispute with a credit reporting company. Fill out a credit dispute letter and include supporting documents. In this guide, we explain everything you need to know about dispute letters and provide a template to help you draft your own. Which will guide you through the process of disputing inaccuracies on your credit report effectively. Watch out for the hype. If you're a victim of identity theft, you can use an affidavit of identity form to prove who you are.