Dear [Client's Name], We hope this letter finds you in good health and high spirits. We are writing to inform you that our records indicate an overpayment in your account related to [invoice number or transaction details]. As a responsible organization, we value transparency and ethical business practices, and it is with great pleasure that we take this opportunity to address the overpayment promptly. After reviewing our records thoroughly, we have determined that the total overpayment amount stands at [dollar amount]. We apologize for any inconvenience caused due to this unintentional error. It is our top priority to rectify such issues and ensure your utmost satisfaction. Our commitment to exceptional customer service and integrity directs us to return the overpayment promptly. You have two options to choose from: 1. Refund: If you would prefer to receive a direct refund of the overpaid amount, kindly respond to this letter and provide us with your preferred method of reimbursement (e.g., check, bank transfer). We will process your refund within [timeframe] and keep you updated regarding the transaction details. 2. Credit towards Future Services: Alternatively, if you would like to keep the overpayment as a credit on your account for future services, please notify us at your earliest convenience. The credited amount will automatically adjust and reflect on your future invoices. This option provides you with the added convenience of hassle-free payments for upcoming services. We understand that your time is valuable, and if any clarification or assistance is required regarding this matter, please do not hesitate to reach out to our dedicated customer support team at [contact information]. Once again, we apologize for any inconvenience caused by this overpayment error and appreciate your understanding throughout the resolution process. We aim to provide you with exceptional service and maintain strong business relationships. Thank you for your prompt attention to this matter. We look forward to continuing our successful partnership and serving your future needs. Warm regards, [Your Name] [Company Name] [Company Address] [City, State, Zip Code] [Phone Number] [Email Address] Keywords: Delaware, Sample Letter, Return, Overpayment, Client, Refund, Credit, Invoice, Transaction, Prompt, Error, Transparency, Ethical business practices, Satisfaction, Customer service, Integrity, Reimbursement, Check, Bank transfer, Future services, Inconvenience, Support, Partnership, Business relationships.