Collin Credit students use Microsoft Outlook for email. See a sample credit dispute letter below.This e-book provides templates for 21 most effective credit and collection letters that will help you communicate better with your customer. Use sample letters to explain your financial situation to your creditors and propose a solution that would serve both your interests and that of your creditors. Print the letter with as many copies as you have on your CC list plus the one for the direct recipient. Address envelopes for all recipients. 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. The Collin College Student Handbook is for information only and is not intended as a contract, expressed or implied. 1. In the sample letter, fill in your personal information.