[Your Name] [Your Address] [City, State, ZIP] [Email Address] [Phone Number] [Date] [Recipient's Name] [Recipient's Address] [City, State, ZIP] Subject: Collection Notice for Unpaid Bill — [Account Number] Dear [Recipient's Name], I hope this letter finds you well. My name is [Your Name], and I am writing on behalf of [Your Company], regarding an outstanding payment that is overdue for account number [Account Number]. Despite our repeated attempts to remind you about the unpaid bill, the balance of [amount] remains outstanding. [Describe the details of the unpaid bill, including the date it was due, the products or services rendered, and any applicable late fees or interest charges.] It is essential to settle this matter promptly to avoid any further complications. Ignoring this notice could result in adverse consequences, including but not limited to tarnished credit history, legal action, or the involvement of third-party collection agencies. We urge you to resolve this matter promptly by remitting the full payment of [amount] within [number of days] from the date of this letter. You can make the payment using one of the following convenient methods: 1. Online Payment: Visit our website at [Your Company's Website] and login to your account to make a payment using a credit card or electronic funds transfer. 2. Check: Please make the check payable to [Your Company Name] and mail it to the address mentioned above. 3. In-person: You can visit our main office located at [Your Company's Address] during our business hours and make the payment at the reception desk. In case you have any queries or need assistance in resolving this matter, please do not hesitate to contact our dedicated accounting department at [Your Phone Number] or via email at [Your Email Address]. We are here to help and resolve any concerns you may have. Please treat this matter with the utmost urgency to avoid any further escalation. We believe this is an oversight, and we hope to resolve this matter amicably without the need for any further action. Thank you for your immediate attention to this matter, and we hope to receive your payment promptly. We value your association with [Your Company] and look forward to continuing a mutually beneficial partnership. Sincerely, [Your Name] [Your Title] [Your Company Name] [Your Company Address] [City, State, ZIP]