1. In the sample letter, fill in your personal information. At the request of and for the account of our customer (Applicant - Name and Address) the.Get your free copy here! Our guide will teach you how to write a letter of explanation, plus offers a free template to help you write one of your own. I respectfully request that your offices provide me with competent evidence that I have any legal obligation to pay you. A letter of credit is essentially a financial contract between a bank, a bank's customer and a beneficiary. Step 2: Purchase Price. I live in California, I have since found out that the loans are illegal in California. Your contact information. Your credit history helps lenders know how you've handled debt in the past.