Boat — Boat airdopes 621 Warranty claim rejected due to product damaged

Website:
www.boat-lifestyle.com/collections/bluetooth-wireless-headphones

I had sound disbalanced issues in the airdope 621, i brought from boat official website. I proceeded to claim warranty and gave the product to delivery partner and now after 1 day they mailed me that my claim has been rejected due to product damaged. I am sure the product wasn't damaged when I gave to the delivery patner for warranty process shipment. I need a replacement for the product. I don't want the damaged product as return ( which may be damaged during the process of shipment or service fulfilment centre