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.A credit dispute letter includes personal information and enclosures that help credit bureaus investigate mistakes. ➢ Even though you are representing yourself, you MUST fill out this section. a. Type in 99500 in the Case Cross Reference Number box. b. This worksheet is designed to be an example for gathering the basic information required in the preparation of an export quotation. Use this sample letter to dispute incorrect or inaccurate information that a business supplied to credit bureaus. Instruct that person to fill out the remainder of the form and return it to you for enclosure with the rest of your application. These are the instructions for completing and filing the AG990-IL form and all required attachments and fees. The word enclosure can be used.