Letter of credit is a financial instrument that plays an important role in protecting both parties in a trade transaction. This e-book provides templates for 21 most effective credit and collection letters that will help you communicate better with your customer.Use this sample letter to dispute incorrect or inaccurate information that a business supplied to credit bureaus. How to use the template: 1. In the sample letter, fill in your personal information. Continue reading to explore the B2B credit application process, common challenges within it, steps to consider before granting credit, and more. Download our 40 Free Credit Application Forms for an individual or business. High quality Credit Application Form Templates ONLY! How to fill out the Sample Letter of Credit Template for Banks and Clients? Count the important things with inventory templates.