Limeline online shopping - Delivery of wrong product

I ordered a designer lehenga ** on **th of May. Today that parcel arrived at home. My mother received that parcel because I was at the office. But when I came to home saw that instead of that lehenga I received an old fashioned saree.
So I submitted a request to refund my amount back. But nobody came to collect that product. When I call on their customer care no that disconnects automatically. Many time I requested on mail also. My order no is *****OS.