Defective/Unsafe Trimmer, Denial of Return and Incorrect COD Payment Status

I purchased a trimmer from Bombay Shaving Company on 27 August 2026, and it was delivered on 31 August 2026. The product is not satisfactory as it causes cuts during use and is not suitable for grooming sensitive areas. The trimming performance is also not smooth or efficient. The company's app showed 30 August 2026 as the last date for return, even though the product was delivered only on 31 August 2026. Therefore, the return period had expired before I even received the product, making it impossible for me to exercise my return option. Additionally, the order was Cash on Delivery. I paid the full amount in cash to the delivery agent on 31 August 2026, but the app continues to show the order status as "UNPAID." No receipt was provided. Despite contacting customer support, the issues have not been satisfactorily resolved. I seek acceptance of the return, full refund of the amount paid, correction of the payment status, and appropriate compensation for the inconvenience caused.