Ekart Logistics — I got a parcel that I didn't order

My mother ordered a Kurta set on Flipkart 11/02/12. Deliver a parcel 14/02/12 my mother received the parcel and paid 799. when opening the parcel she shows the wrong product delivery. the product was third class. They don't have any company logo or tag. She didn't understand it was a fraud parcel because 'Name, phone number, address and also the same price. Then call the delivery boy, delivery boy said they knew nothing. Then open the Flipkart app and try to return but the Flipkart app shows the product not deliver. even on 16/02/2024, I got another parcel. we received the parcel and asked the delivery boy about the wrong product being delivered. what I should do, the delivery boy checked the parcel and told us it was a fraud. We really don't know where this wrong product came from. don't know what should I do. I want to return the product. I want my money back. order id TRSC[protected]