[Your Name] [Your Address] [City, State, ZIP Code] [Email Address] [Phone Number] [Date] [Customer Name] [Customer Address] [City, State, ZIP Code] Subject: Follow-up on Duplicate Order Dear [Customer Name], I hope this letter finds you well. I am writing to follow up on the issue regarding the duplicate order placed on [Order Date]. Firstly, I would like to apologize for any inconvenience caused by our internal error. Please accept our sincere apologies for any inconvenience and frustration this may have caused. Upon reviewing our records, it has come to our attention that a duplicate order was inadvertently processed for [Product/Service Name]. We deeply regret this oversight and want to assure you that steps have been taken to rectify the situation. Kindly find the details of the duplicate order below: Order Number: [Order Number] Order Date: [Order Date] Total Amount: [Order Total] Product/Service: [Product/Service Name] Duplicate Order Status: [Order Status — e.g., delivered, in transit, awaiting delivery] We understand the inconvenience this might have caused and want to assure you that our team is working diligently to resolve this matter. We have already initiated the refund process for the duplicate order, and the amount will be credited back to your original payment method within [Number of Days/Timeframe]. If you have any further questions or concerns regarding the duplicate order or refund process, please do not hesitate to contact our customer service team at [Customer Service Phone Number] or email us at [Customer Service Email Address]. Our dedicated team will be more than happy to assist you in any way possible. Once again, I sincerely apologize for the inconvenience caused and assure you that we are committed to providing you with a seamless and hassle-free shopping experience in the future. We greatly value your business and would like to offer you a [Discount Code/Store Credit/Incentive] as a token of our appreciation for your patience and understanding. Thank you for your continued support and for bringing this matter to our attention. We look forward to serving you better in the future. Best regards, [Your Name] [Your Title/Position] [Company Name]