[Your Name] [Your Address] [City, State, ZIP] [Date] [Recipient's Name] [Recipient's Address] [City, State, ZIP] Subject: Disputed Balance Notice for Account [Account Number] Dear [Recipient's Name], I am writing to bring to your attention a disputed balance on my account [Account Number]. I have carefully reviewed the details of the transactions on my account statement and have identified a discrepancy that requires immediate resolution. According to my records, there seems to be an error in the recent billing statement I received from your company. The disputed balance appears to be related to [describe specific transaction(s) in detail] and has resulted in an incorrect outstanding balance of [amount in dispute]. I kindly request that you conduct a thorough investigation into this matter and rectify the discrepancy promptly. I have enclosed copies of all supporting documents, including receipts, invoices, and any other relevant information pertaining to the disputed transaction(s). It is important to note that I have made diligent efforts to resolve this matter through previous communication with your customer service department. To ensure a prompt resolution, I urge you to acknowledge receipt of this letter within 10 business days from its date. Additionally, I request that you notify me of any actions taken in response to this dispute. Although I trust in your professionalism and commitment to customer satisfaction, I reserve the right to escalate this matter further if it remains unresolved. Please be advised that until this dispute is settled, I will not make any payments towards the disputed amount. This action is not meant to be adversarial but rather to protect my rights as a customer. I hope to reach an amicable resolution that positively reflects both our interests. I kindly request that you address this dispute with the utmost urgency and provide me with a written response outlining the steps you will be taking to investigate and resolve the discrepancy. If necessary, I am open to a mutually agreed-upon method of dispute resolution, such as mediation, to expedite the resolution process. I appreciate your immediate attention to this matter and trust that we can resolve this dispute swiftly and amicably. As a loyal customer, I value the relationship I have established with your company and hope that our future interactions will remain positive. Thank you for your cooperation, and I look forward to your prompt response. Sincerely, [Your Name]