Dear [Client's Name], We hope this letter finds you well. We are writing to inform you that an overpayment has been made on your recent transaction with [Company Name], and we would like to promptly address this issue. Please accept our sincere apologies for any inconvenience this may have caused. After thoroughly reviewing our records, we noticed that there was an excess payment made by you in the amount of [overpayment amount]. We appreciate your attention to detail and understand that errors occur from time to time. Rest assured, we are committed to rectifying this situation and ensuring that you receive the correct amount owed to you. To facilitate the return of the overpayment, we kindly request that you provide us with your preferred method of reimbursement. You have the option to receive the overpayment by check, direct bank deposit, or credit back to the original payment method. If you choose to receive the refund by check, please confirm your mailing address by replying to this letter or contacting our customer service department at [customer service phone number] within [number of days for response]. Once we receive your confirmation, we will promptly issue a check in the amount of the overpayment to your given address. If you prefer a direct bank deposit, please provide us with the necessary banking information, including the account holder's name, bank name, account number, routing number, and any additional information required by your financial institution. Rest assured, we understand the sensitivity of this information and will handle it with the utmost confidentiality and security. Alternatively, if you choose to have the overpayment credited back to the original payment method, please specify the card or account details associated with the transaction. We will process the refund accordingly, ensuring that the amount is returned to your account within [estimated timeline]. We kindly request that you respond to this letter within [specified timeframe] to expedite the return of your overpayment. If we do not receive a response within this time, we will assume you have approved the credit back to your original payment method. We value your business and want to ensure that you are completely satisfied with our services. Should you have any questions or concerns regarding this overpayment, please do not hesitate to reach out to our dedicated customer service team. They can be reached at [customer service phone number] or [customer service email address]. Thank you in advance for your understanding and cooperation in rectifying this matter. We apologize once again for any inconvenience caused and look forward to resolving this issue swiftly. Warm regards, [Your Name] [Your Title] [Company Name]