1. In the sample letter, fill in your personal information. Use this sample letter to dispute incorrect or inaccurate information that a business supplied to credit bureaus.Fill out a credit dispute letter and include supporting documents. Below is a sample letter to help you craft your own letter. Send the letter via certified mail and keep the return receipt for your records. In this article, we explain what an enclosure is and how to cite one, and we provide an example of an enclosure in a business letter. A 609 letter is a credit repair method that requests credit bureaus to remove erroneous negative entries from your credit report. Learn how to write an effective collection dispute letter with our guide and templates. An acceptable letter of good credit history must be provided on business letterhead and contain the information listed below. Motor vehicle dealer applicants may elect to obtain an Irrevocable Letter of Credit.