Dear Customer Support, I am writing to request a refund for a smartphone case that I recently purchased from your website. The subject of my purchase was a "Smartphone Case" that I received on [date of delivery]. Unfortunately, I am dissatisfied with the product because it does not fit my phone properly. I have tried adjusting the case several times, but it still does not fit my phone as expected. I have also compared the measurements of the case with those of my phone, and it is clear that there is a significant size discrepancy. Therefore, I would like to request a full refund for the purchase price of the smartphone case, as well as any shipping fees incurred. I believe that this is a reasonable request given the nature of the product defect and my inability to use the case. Thank you for your attention to this matter. I look forward to hearing back from you soon and hope that we can resolve this issue promptly. Sincerely, [Your Name]