Subject: Unresolved Issue with [Product Name] — Requesting Immediate Resolution [Your Name] [Your Address] [City, State, ZIP Code] [Email Address] [Phone Number] [Date] [Customer Service Department] [Company Name] [Company Address] [City, State, ZIP Code] Dear [Customer Service Department], I hope this letter finds you well. I am writing to you as a deeply disappointed and concerned customer, who has been a loyal patron of your esteemed brand for several years. Regrettably, I find myself compelled to express my dissatisfaction with a recent purchase of your [Product Name]. To provide some background, I have been a devoted customer of your company for over [number of years] and consistently experienced satisfaction with the high-quality products and commendable customer service. However, the most recent purchase of the [Product Name] has left a bitter taste, as it did not meet the usual standard of excellence your brand is known for. The primary issue that I encountered with the [Product Name] is [describe the problem and its impact on you]. Despite following the usage instructions meticulously, the product failed to deliver the promised results and instead posed significant inconveniences and disappointment. I have attached copies of all relevant purchase receipts and product information as supporting documentation for your perusal. Being a loyal customer, I hold your company in high regard and believe in the value of your products. Therefore, my objective in writing this letter is to seek a fair and prompt resolution to this matter. I trust that your company is committed to rectifying such instances effectively and ensuring customer satisfaction. To resolve this issue amicably, I kindly request the following remedies: 1. Replacement of the defective [Product Name] with another one of acceptable quality. 2. A refund or store credit for the purchase price of the [Product Name]. 3. A complimentary gift or voucher to compensate for the time, effort, and inconvenience caused by this disappointing experience. I firmly believe that addressing this concern will not only restore my confidence in your products but also reinforce the trust and loyalty I have held towards your brand for a significant period. Given my long-standing association with your company, I trust that you will consider my complaint with the utmost seriousness it deserves, exercising the highest level of customer care. I kindly request an acknowledgement of this complaint within [number of days] and a resolution in a timely manner. I look forward to your prompt response and a mutually satisfactory resolution. Thank you for your attention to this matter. Yours sincerely, [Your Name]