Flipkart — Delivery boy make my exchanged phone not work and then returned

Address:	Surat, Gujarat, 395006
Website:	Flipkart.com

My self paril katrodiya i have purchased moto e3 power from flipkart with advance payment
With order id:OD[protected]
Delivery boy first check my nexus 4 which i have to exchange for my order. Then he took sign anf deliveres moto e3 and taken sign
Then after about 20 min .he comes again and say that phone not working and put my nexus 4 ( making non working) and taken forcefully return my moto e3 from wife's hand and run away.
And flipkart not resolving my issue from last 2 days .only giving time anf passing time always.

So my request you to solve my query
And give product back
And make my nexus4 working or give new