Boat — Damaged Product Delivered and denied to replace it

Address:

119/28 Jawahar Nagar Sonipat ,131001

I ordered the boat rockerz 255 pro black from the boat website on 26th August 2023 with prepayment and I got the delivery of product on 29th August 2023 but when I unbox the product it was a damaged product and immediately I put the request for the replacement and they assign the courier company Xpressbees to pick up my product but the courier company refused to pick up my damaged product as they said they got the image of non damaged product so I talk to the boat customer care and they assure me that they will replace my product but after some days they denied via email that they had delivered the right product and cannot replace my product .
So I want you to please help me in replacing the product .