[Your Name] [Your Address] [City, State, ZIP Code] [Email Address] [Phone Number] [Date] [Insurance Company Name] [Claims Department] [Address] [City, State, ZIP Code] Subject: Complaint Regarding Denied Insurance Claim for [Policy Number] Dear [Insurance Company Name], I am writing to formally complain about the denial of my insurance claim under the policy [Policy Number]. I believe that the decision made by your company is incorrect and unjustified, and I kindly request a thorough review of my case. My policy with your esteemed company has been in effect for [duration] and I have always promptly paid my premiums without any delay or default. The purpose of my insurance policy is to provide financial protection during unforeseen circumstances, and I relied on the coverage provided under this policy when such a situation arose. On [Date], I submitted a claim for [description of the claim]. However, to my dismay, I received a letter from your company on [Date of Denial Letter] denying my claim. The grounds for denial outlined in the letter seem to be based on erroneous information and a misinterpretation of the terms and conditions of my policy. I have thoroughly reviewed my policy documents, and the circumstances of my claim clearly fall within the coverage provided by the policy. To support my claim, I have enclosed all relevant supporting documents, including medical reports, receipts, photographs, and any other necessary paperwork for your perusal. These documents clearly demonstrate that my claim is legitimate and in accordance with the provisions laid out in the policy. Having been a loyal and satisfied customer for many years, I sincerely hope that this issue can be resolved amicably and promptly. It is my expectation that your company will rectify this error and reconsider its decision to deny my claim without any justifiable grounds. I kindly request your urgent attention to this matter and a response within [reasonable timeframe, e.g., 30 days] from the date of this letter. Please provide me with a detailed explanation for the denial of my claim and clearly outline any steps I need to take or additional documentation required for reconsideration. Failing a satisfactory resolution to this issue, I will not hesitate to seek legal advice and escalate the matter through appropriate channels, including filing a complaint with the [relevant regulatory authority]. I trust in your commitment to providing excellent service to your customers and your willingness to rectify this situation promptly. I look forward to a favorable resolution of this complaint and to continuing our business relationship positively. Thank you for your immediate attention to this matter. Yours sincerely, [Your Name]