Myntra.com — Delivery agent irresponsibility

I ordered dress from myntra. I thought that it fit perfectly but it does not. So I want to return it. But the dress has only 7day return policy. I received my product on 24.01.2023 evening . I kept my return request on fourth day 27.01.2023. And today is 6th day 29.01.2023. The delivery agent didnot shown up till now and did not even contacted me . But in the portal it shows that return pickup failed due to customer unavailable. Due to their negligence I am going to loose my money. Please resolve this issue as soon as possible. And take my return pickup and refund my money.