Flipkart — Not delivering my order by delivery boy

I ordered Motorola g32 with exchange of my old mobile. Delivery boy came, checked thoroughly the condition of old phone, approved for exchange then said he can't deliver my order as he has done some mistake in exchange criteria and refused to give me my order. When I plead to contact customer care so that I can get it by today he rudely behaved with me at the extent of violent physical contact and denied. I was assured to have my order by today, and I believe you guys can help me out. I can't suffer because of fault from delivery boy