1. In the sample letter, fill in your personal information. To make available to the public the identities of those persons or entities doing business under fictitious business names.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. I am writing to notify you that under the Fair Debt Collection Practices Act, I am requesting that you to cease all communications with me. This e-book provides templates for 21 most effective credit and collection letters that will help you communicate better with your customer. A letter of credit is a letter from a bank guaranteeing that a buyer's payment will be received on time and for the correct amount. SCORE Business Mentors. SBA partners with SCORE to connect you with an expert business mentor in a wide range of services at no cost. You Don't Have to Pay for Help With Your Federal Student Loans. Download and complete an electronic Business Tax Receipt Application .