Jashn Kurta - Wrong Product Delivered No Refund

So I received this kurta pyjama set from jashn kurta yesterday, their site mentions * days return/exchange. First of all product is not at all what is shown on the website, it feels very cheap. Second, I have tried raising the complaint on email/ have called them multple times. Their number is switched off andd they aren't replying to my emails. Please help me!
This is the product link:
https://jashnkurta.com/collections/kurta/products/ethnic-ivory-off-white-kurta-pajama-with-embroidery

You can check their site as well.
This is very traumatizing. I need appropriate compensation from them. They can't be fooling customers like this. And I hope this business gets taken down.