Flipkart — Wrong Grocery Items delivered

I ordered the grocery on April 2, valuing ₹2, 281, the invoice is attached. With the pin I received for this order id I was delivered the wrong items completely named isha gupta of value 1000. I have complained 6 times but no action has been taken. I, therefore, request you to please revert my money or ordered items.
When the things were delivered only my old mother was at home whom I shared otp. She is not competent enough to read small letters typed in English in bills. though the delivered order is postpaid they did not ask for money else at that time also I will ask her to see the order details. hence wrong items delivered.