Flipkart — delivered the wrong item, and not give replacement of my order.

Name of the company — flipkart internet private ltd.
Order number — od[protected].
Date of purchased — 31 jul 2020.
Paid amount — rs. 1375/-
Product type — syska ultratrim ht700
Register mobile number — [protected]
Date of delivery — 5 aug 2020
Problem details — i had ordered a product through this company. The company has delivered his order but the product was wrong.
I had informed the company regarding this but he has not been responded to me.
So i want to complain about them.
Expectation — i want replacement earliest.