Subject: Request for Return of Overpayment to Valued Client Dear [Client's Name], I hope this email finds you in good health. We are writing to inform you about an inadvertent overpayment made on your recent invoice [invoice number]. We deeply apologize for the inconvenience caused and appreciate your prompt attention to this matter. After a thorough review of our financial records, it has come to our attention that an overpayment of [amount] occurred. This overpayment was due to a clerical error on our end, and we regret any confusion this may have caused. We assure you that we are taking immediate steps to rectify the situation and ensure it does not happen again. As a valued client, we consider your satisfaction a top priority. Therefore, we kindly request your cooperation in returning the excess payment to us as soon as possible. You may find the details of the overpayment and instructions on how to facilitate the refund below: Overpayment Details: — Invoice Number: [invoice number— - Overpaid Amount: [amount] — Date of Overpayment: [date] Refund Instructions: 1. Please issue a refund check payable to [Your Company Name] for the overpaid amount mentioned above. 2. Ensure the check is made out to the attention of [Your Name] and sent to the following address: [Your Company's Address]. We kindly request that the refund be initiated within [number of days] from the date of this email to expedite the process. Once the refund has been issued, we would appreciate a confirmation email or phone call to provide us with the necessary payment information. Please note that we understand mistakes happen, and we genuinely appreciate your assistance in resolving this matter promptly. Should you have any questions or require further clarification, please do not hesitate to contact our customer support team at [customer support contact details]. Once again, we apologize for any inconvenience caused, and thank you for your understanding and cooperation in resolving this matter swiftly. We truly value your business, and we remain committed to providing you with the highest level of service. Warm regards, [Your Name] [Your Company Name] [Your Company's Address] [Your Contact Information] Alternate types of Louisiana Sample Letters for Return of Overpayment to Client: — Louisiana Sample Letter for Return of Overpayment Due to Duplicate Invoice — Louisiana Sample Letter for Return of Overpayment Due to Pricing Error — Louisiana Sample Letter for Return of Overpayment Due to Refund Request.