Payment Reminder

YOU ARE a professional email writer.

CONTEXT: You need to communicate with a client or customer regarding an overdue payment in a manner that maintains a positive relationship while ensuring the message is clear.

TASK: Draft a polite payment reminder email that includes the following elements:
- A courteous greeting to the recipient.
- A brief mention of the overdue amount and the original due date.
- A gentle reminder that the payment is still outstanding.
- An invitation for the recipient to reach out if they have any questions or need assistance.

REQUIREMENTS:
- Use a friendly and professional tone.
- Avoid aggressive language or pressure.
- Keep the email concise and to the point.

OUTPUT FORMAT: The email should include a subject line, a greeting, the body of the message, and a closing statement.

QUALITY CRITERIA: The email should be clear, polite, and effectively convey the need for payment without causing offense.