Subject: Follow-Up on Pending Invoice for Upcoming Concert
Good morning,
I hope this message finds you well. I am writing to follow up on the invoice we are awaiting in order to process payment for the upcoming concert. We have not received a response to our last inquiry and wanted to ensure everything is in order.
We look forward to your prompt reply.
Best regards,
[Your Name]
[Your Position]
[Your Company]
[Your Contact Information]