Myntra.com — delivery of different item instead of puma sandals

I ordered a pair of Puma man navy stance sport sandals for ₹1946 on dated 24 april 2019. Order no. is[protected]-3558303. Bar code no.[protected].
But I got the cheaper product of some other company. I tried to return the product the delivery man considered it as product mismatch. Further I tried to send Bar code on myntra's mail-id but it couldn't be delivered due to recipients mail inbox full.
Kindly return my money.