This e-book provides templates for 21 most effective credit and collection letters that will help you communicate better with your customer. This stepbystep guide will take you through all the necessary details you must know to successfully dispute any error on your credit report.A goodwill letter explains why you had a late payment and asks the creditor to take it off your credit reports. Use this fill-in-the-blank Notice of Credit Limit letter to notify clients when they've exceeded their credit limit. See a sample credit dispute letter below. We've created ready-to-use collection letter templates. Read on below to find out what every letter should say in order to collect payment as soon as possible. A credit card authorization letter gives someone permission to use your card. Learn how to write one, and when it's appropriate to use it. I demand that you send me a copy of my updated credit report showing the elimination of the items, which I disputed on the attached letters.