Asking to make payment mail

Here's an example of a polite and professional email asking for payment:

Subject: Payment Request for [Invoice Number/Order Number]

Dear [Customer's Name],

I hope this email finds you well. I am writing to request payment for the outstanding balance of [amount] for [invoice/order number]. As per our agreement, the payment was due on [due date].

We understand that unforeseen circumstances may have caused a delay in payment, and we are more than happy to work with you to find a solution. However, we do need to receive payment as soon as possible to ensure that our services can continue uninterrupted.

To make a payment, you can use the following options:

Please note that a late payment fee of [late payment fee amount] will be applied if payment is not received by [late payment deadline].

If you have any questions or concerns regarding the payment, please do not hesitate to contact us. We are always here to help and appreciate your prompt attention to this matter.

Thank you for your prompt payment, and we look forward to continuing our business relationship.

Best regards,

[Your Name] [Your Company Name] [Contact Information]

This email template is just a sample, and you should adjust it according to your company's specific needs and policies. Remember to include all the necessary details, such as the invoice number, amount due, and payment options.