Subject : Dear Sir, We thankfully acknowledge the receipt of your cheque nNo. The sample acknowledgement letters for receipt of payment provided below can be used as format templates for official and personal purposes.An acknowledgment is one of the most common types of notarial acts, but it often confuses Notaries. Here are 5 steps to performing an acknowledgment. We'll show you how with 5 acknowledgment email reply samples and a completely customizable template. 2. Please do not include this letter to refund request to avoid inconvenience during check pick up). This will add several days to receipt of your refund. If further action from the recipient is necessary, include the next steps in the acknowledging receipt.