Dear [Customer], I hope this letter finds you well. I am writing to address an issue regarding your recent payment for [product/service] and the denial of the discount that was previously offered. Before I proceed, I want to assure you that we value your business and our aim is to provide exceptional service to all of our customers. According to our records, your payment for the invoice [invoice number] was received after the due date specified in our agreed upon payment terms. This constitutes a late payment, and unfortunately, we must adhere to our company policy regarding such instances. As a result, the discount that was originally offered with this invoice is no longer applicable. We understand that unforeseen circumstances can sometimes cause unintentional delays in payments. However, it is crucial to maintain consistency in our accounting practices in order to ensure fairness among all our customers. We kindly request your understanding in this matter. We also understand that this situation may have caused some inconvenience for you, and we sincerely apologize for any inconvenience caused. Furthermore, we value your business relationship and would like to offer you the opportunity to reinstate the discount for future purchases. If you continue to meet the agreed upon payment terms without any late payments, we will be more than happy to consider extending the discount to you again. Should you have any questions or concerns regarding this matter, please do not hesitate to contact our customer support team at [phone number/email address]. We are here to assist you in any way we can. Once again, we appreciate your business and hope to continue serving you in the future. Thank you for your understanding and cooperation. Best regards, [Your Name] [Your Title/Organization] [Contact Information] Keywords: Contra Costa California, late payment, denial of discount, sample letter, return of payment, late payment policy, payment terms, customer support, invoice, discount reinstatement, accounting practices.