Flipkart — My product is picked up and return request is cancelled.

I ordered a watch, then due to some issues I created a return request and on 24 August, my product is picked-up by a delivery boy and he cancelled my request instead o[censored]pdating, on 25 August by saying product mismatched.

Then I ask for help from the customer service, they are saying that product is not picked-up, they can't help.

This is a mistake of delivery boy, he cheated, please take any action for this fraud.