[Your Name] [Your Address] [City, State, ZIP] [Email Address] [Phone Number] [Date] [Recipient's Name] [Recipient's Address] [City, State, ZIP] Subject: Disputed Bill for [Service/Invoice Number] Dear [Recipient's Name], I hope this letter finds you well. I am writing to address a concerning matter regarding a bill I received from your company for [service rendered/purchase made] on [date]. After reviewing the details of the bill, I have identified several discrepancies that I believe warrant further clarification and resolution. Firstly, I would like to highlight the incorrect calculation of charges listed on the invoice. The total amount billed differs significantly from the initially agreed-upon price for the service or product. I kindly request a detailed breakdown of the charges to better understand the basis for the discrepancy. Furthermore, I would like to bring your attention to the unsatisfactory quality of the [service/product] provided. The delivered [service/product] did not meet my expectations as it deviated from the promised standards outlined in our agreement/contract. The subpar quality not only failed to fulfill the requirements agreed upon but also resulted in additional expenses on my part to rectify the issues. Additionally, I have compared this bill with previous invoices from your company, and the charges seem inconsistent. This raises concerns about potential errors or unauthorized charges. Therefore, I kindly request a thorough review of my account history to identify any discrepancies and provide an explanation for the same. To ensure a prompt resolution of this matter, I kindly request the following actions from your end: 1. Provide an itemized breakdown of the charges mentioned in the disputed bill, clearly detailing the fees for each individual service or product. 2. Investigate and address the quality issues associated with the service or product rendered in a satisfactory manner. 3. Compare the disputed bill with my previous invoices to identify any irregularities or unauthorized charges, providing an explanation for each discrepancy. 4. Consider adjusting the bill to reflect the initially agreed-upon price or compensating any additional costs incurred due to the unsatisfactory performance. I firmly believe in maintaining a good business relationship, which is why I am reaching out to you to resolve this matter amicably. I trust that you will take swift action to investigate and address these concerns to ensure our mutual satisfaction. Please acknowledge receipt of this letter within [reasonable timeframe] to confirm that you are actively addressing my dispute. I kindly request your response within [reasonable timeframe] with your detailed findings and proposed solution to this matter. Thank you for your prompt attention to this dispute. I look forward to hearing from you soon and reaching a fair resolution. Sincerely, [Your Name]