The sample acknowledgement letters for receipt of payment provided below can be used as format templates for official and personal purposes. Acknowledgement Letters for Receipt of Payment.This document is a receipt acknowledging payment received from an individual or entity. Sample Letter of Acknowledgement. Letter of acknowledgment provides proof that a receiver has received specific documents, goods, services, a specific type of request, an order, etc. First things first: A donation acknowledgment letter is not the same as a thankyou letter. It's technically much more like a receipt. Dear Courtney J. Powell, I am writing to acknowledge the receipt of the cash payment you made on June 3, 2053. This distribution represents a full and complete satisfaction of my interests in the Trust and the Estate. Release of Earnest Money: In the event of a dispute between Buyer and Seller regarding earnest money deposited with Escrow.