Learn how to write a proof of rent payment letter for your tenants in minutes. Download our free proof of payment letter to use right away.I am writing to confirm my acceptance of your employment offer on April 20 and to tell you how delighted I am to be joining XYZ Corporation in Chicago. How to fill out the Confirmation of Payment Received Letter? 1. Enter your company name and contact information. 2. Learn how to write a proof of income letter with our stepbystep guide and use our fillintheblanks template as an example. Discover 7 different employment verification letter templates with different details for proof of employment or future job opportunities. In this article, we discuss how to write a conformational letter, look at sample templates for formal and informal confirmation letters and share some tips.