Delhivery — Delivering fraudulent products

I ordered a product: salwar online through this website: https://diwalisaleoffer.in/collections/salwar-suit?page=8. The courier company brought a box in which there was an old used saree. I tried to return the product back to them as it was not something which i ordered. They said they can never return the money and that they do not wnquire as to who sends the products. This is very unethical as peactices like this give opportunity for fraudulent person to cheat people through e commerce. The company refused to give me any details on the sender of this fraudulent product. And did not refund my cash.