Subject: Urgent Notice — Failure to Pay Account and Proposed Withdrawal Dear [Client's Name], We hope this letter finds you in good health and high spirits. We would like to bring to your attention an outstanding matter regarding your account with [Your Company Name]. Despite multiple reminders and negotiation attempts, we regret to inform you that your account payment remains unpaid for the following invoice(s): [Invoice Number(s)]. As an esteemed client, we have always valued our business relationship with you and strived to provide you with the utmost satisfaction. However, we cannot overlook the importance of prompt payments to sustain our operations smoothly. The delayed payment has presented us with certain financial implications, thus necessitating immediate resolution. In light of the aforementioned circumstances, we feel obliged to propose a withdrawal of our services until the outstanding amount is settled in full. This decision was not made lightly, and we sincerely hope it does not come to fruition. Rest assured, we remain committed to finding an amicable solution to this matter without any interruption to our collaboration. We kindly request your immediate attention to the outstanding payment, totaling [Amount Due]. Please refer to the attached statement that outlines the invoice(s), their corresponding amounts, and the total due. To facilitate a swift resolution, we suggest remitting the payment within [specified number of days] from the date of this letter. We understand that unforeseen circumstances may have resulted in the delayed payment, and we are willing to work with you to establish a new payment plan if necessary. Our primary goal is to ensure a mutually beneficial relationship, and we encourage open dialogue to address any concerns or challenges you may be facing. To discuss alternative payment arrangements or if you have any questions regarding your account, please reach out to our dedicated accounts team at [Contact Information]. We genuinely believe that through effective communication, we can resolve this matter promptly and maintain the strong business rapport we have built over the years. Please be aware that if we do not receive the outstanding payment or come to an alternate agreement within the specified timeframe, we will proceed with the withdrawal of our services. We sincerely hope it does not come to this, but it is necessary for us to protect the interests of our company and our employees. Once again, we appreciate your prompt attention to this matter and remain optimistic for its swift resolution. We value your business and sincerely hope to continue serving you as a valued client in the future. Thank you for your understanding and cooperation. Yours sincerely, [Your Name] [Your Position/Title] [Your Company Name] [Your Contact Information]