This e-book provides templates for 21 most effective credit and collection letters that will help you communicate better with your customer. Download our sample letter and instructions to submit a dispute with an information furnisher.Download our sample letter and instructions to submit a dispute. A credit dispute letter is a formal document that businesses send to credit bureaus to rectify inaccuracies or outdated information in their credit reports. 1. In the sample letter, fill in your personal information. In this article, we discuss how to write a business proposal letter and we offer sample letters and templates you can use as a guide. This sample letter explaining credit problems will help you focus your efforts when appealing to a property manager for an apartment. A letter of credit facility is a contract between a buyer and seller where the bank guarantees payment upon presenting certain documents. A letter of credit is a letter from a bank guaranteeing a seller will receive payment from the buyer in the correct amount and on time. The U.S. Small Business Administration (SBA) has some great templates for crafting a business plan.