1. In the sample letter, fill in your personal information. This stepbystep guide will take you through all the necessary details you must know to successfully dispute any error on your credit report.One way to fix an error on your credit report is to write a credit dispute letter and mail it to one or more credit bureaus. Include your name, address, phone number, and email address at the top of the letter. Our guide will teach you how to write a letter of explanation, plus offers a free template to help you write one of your own. Date of original charge off or delinquency. • Verification that this debt was assigned or sold to collector. At the request of and for the account of our customer (Applicant - Name and Address) the. Get your free copy here! Get your free copy here!