Dear [Recipient's Name],

I hope this message finds you well.

I am writing to follow up on the status of invoice #[Invoice Number], dated [Invoice Date], for the amount of [Amount]. According to our records, the payment was due on [Due Date], and we would appreciate any updates regarding its processing.

If the payment has already been made, kindly provide the transaction details or confirmation. Otherwise, please let us know if you require any additional documentation or information to proceed.

Thank you for your attention to this matter. We value our partnership and look forward to your prompt response.

Warm regards,
[Your Full Name]
[Your Job Title]
[Your Company Name]
[Email Address]
[Phone Number]