Flipkart — Delivery boy behavior

I am giving the return product and asking why you cancel my return yesterday he was yelling at me and spoken unparlimentary words and trying to beat my brother, neighbours of our housecame to stop him, i never saw any delivery executive with this type of behavior .he is worst, threating the ladies how you appoint these type of rowdies in your company.please make sure to take action against him otherwise i will make complaint in consumer forum court thank you