Amazon India — received wrong item

Address: Hyderabad, Andhra Pradesh

I have ordered for Pink Corporate Cotton shirt With Swarovski Crystal Logo Sold by Adam n' eve Clothing and paid an amount of Rs.1, 199 through net banking. My Order #[protected]. And I received the confirmation mail from amazon.in like "Your package is being shipped by ATS and the tracking number is[protected]. Depending on the shipping method you chose, it may take 24 hours for your tracking number to return any information. Please note that a signature may be required for the delivery of the package." But I have received Black trousers in the place of Pink Corporate Cotton shirt With Swarovski Crystal Logo. When approached amazon through mail to know about returning the item, the seller called me and said no need of sending the trousers. Actually I don't need the item which they had sent me and even if I had to send it I had to bear the postage charges. I bring this to your notice so that you look into the matter and REFUND the amount which I have paid for the item of my choice