Flipkart — Dead and Used product received Nothing Ear 1

Address:

Spring fields colony, Sector 31, Faridabad, Haryana

I had purchased Nothing Ear 1 through Flipkart on 12 July and received on 13 July, when i came back from office and open then i was found issues.
1. That outer box was packed and inner brand box was opened
2. Product is dead (Not power on after charge by cable or wireless less)
3. I had created return as battery issue because there is no option for used product, after 2 days technicians visit he update the status product is used Flipkart is canceled.
4. I was create again return request, then again canceled by Flipkart or team of Flipkart. Reason don’t know. I had called many times no resolution.
5. I was creat again return request now Flipkart giving dates and dates now resolution after making 20 + calls
6. Now they gave me again date and now saying Flipkart assured can’t give used product how can I accept this because I received used product.

Now guide me how can i take my money and time return from Flipkart.