Myntra.com — Rejecting Refund claim for undelivered product

The issue that i have experiencing is that i had ordered a w kurta women navy blue and peach-coloured straight fit kurta on 2nd july 2020 which has not been delivered. However, it has been updated as a delivered in the app. I have been chasing myntra customer care for almost everyday since then. They claim that the product was part of packet which was successfully delivered on 28th july 2020. But the said packed contained only one other item (Espirit bag) and did not have the kurta. Now they are demanding that i present a unboxing video to show that the packet did not have the kurta. As per general practice, i have maintained the pictures of the packet which myntra customer service is not accepting these and have denied my claim.

It occurred on: 28/07/2020

I want a full refund for my product and if that is not happening then i demand a video from myntra showing that this product was delivered basis of which they are denying the claim.