How to use the template: 1. In the sample letter, fill in your personal information.Below you will find samples of the four types of dispute letters we outline above. You can download a template letter in Word for each type of dispute. Get your free copy here! Presentation and payment under this Letter of Credit is restricted to the following location in. Use this sample letter to dispute incorrect or inaccurate information that a business supplied to credit bureaus. 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. A debt validation letter is a written communication that a consumer sends to a debt collector or creditor to request verification and validation of a debt.