Subject: Friendly Reminder: Overdue Payment for Invoice [Invoice Number] Dear [Customer's Name], We hope this letter finds you in good health and high spirits. We want to kindly bring your attention to the outstanding balance on your account for the invoice [Invoice Number] dated [Invoice Date]. According to our records, the payment for the aforementioned invoice is now [number of days] days overdue. At [Your Company Name], we greatly value our relationship with you and strive to maintain open and honest communication. We understand that unforeseen circumstances may occur, causing delays in payment. However, it is important to settle any outstanding balances promptly to avoid any inconvenience or disruptions to future business interactions. The total outstanding balance on your account is [Total Amount Due]. We kindly request immediate attention to this matter to ensure a seamless continuation of our business relationship. You can submit your payment using one of the following methods: 1. Online Payment: Visit our secure website at [URL] to make an online payment conveniently. 2. Bank Transfer: Use the provided bank account details below to initiate a wire transfer: Account Name: [Account Name] Bank Name: [Bank Name] Account Number: [Account Number] Routing Number: [Routing Number] To ensure accurate processing of your payment, please remember to include the invoice number [Invoice Number] as a reference when submitting your payment. If you have already settled the payment, please disregard this letter, and we apologize for any inconvenience caused by this reminder. In case you are experiencing financial difficulties or have any concerns regarding this payment, we encourage you to get in touch with our accounting department at [Contact Number] or [Email Address]. Our team will be more than willing to work with you and explore any suitable payment arrangements or solutions. We genuinely appreciate your timely response and cooperation in resolving this matter as soon as possible. Should you require any further clarification or assistance, please do not hesitate to reach out to us. Let us continue building a strong and mutually beneficial partnership. Thank you for your prompt attention. Sincerely, [Your Name] [Your Position] [Your Company Name] [Your Contact Information: Phone Number, Email Address]