Flipkart — Acoustic 38c classic black guitar

Hello Team,
I am Ashfaq Sumra and I had ordered a classic black acoustic guitar from flipkart on 23rd July. However, I received a red sunburst guitar insted of the classic black. My concern is when I ordered a classic black because I wanted that then how can the sender vhange it to red sunburst and send it to me. This is purely unethical. Now when I am trying to exchange I do not get the option to exchange. I can only return the product. But I do not want that. I'd like an exchange for the color I had ordered "a CLASSIC BLACK".
Kindly look into this at highest priority as it was a gift sent for someone. This has ruined the birthday of that person.
Never expected this from flipkart.