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Dear [Recipient's Name],
This is a final notice regarding your overdue invoice number [Invoice Number], dated [Invoice Date], for the amount of [Amount Due]. The payment was due on [Due Date] and remains outstanding despite our previous reminders.
To maintain our positive business relationship and avoid further action, we urge you to settle this balance immediately. Please complete the payment via [Payment Method] within [Number, e.g., 7] days.
If payment has already been made, please disregard this notice. For any questions or concerns, contact us at [Contact Information].
Thank you for your prompt attention.
Sincerely,
[Your Name/Company Name]
[Date]