The sample acknowledgement letters for receipt of payment provided below can be used as format templates for official and personal purposes. This letter serves several key purposes: Acknowledges Receipt: It confirms that the insurance company has received the claim.The purpose of letters of acknowledgment is to provide proof that you have received specific documents or a specific type of request. Learn how to write an Acknowledgement Letter with this informative guide. We can provide you with downloadable samples of receipt acknowledgment letter templates if you need examples in creating this kind of letter. Donation acknowledgment letters are more than just a donor tax receipt. There are certain items to include for tax purposes. Acknowledge receiving a report professionally. How to write an Acknowledgement Receipt Letter? An easy way to start is to download this Sample Payment Receipt Acknowledgement Letter template now!