Flipkart — Mobile poco x4 pro exchange with m2 pro

Tracking id:FMPP[protected]
Delivery person was dumb and not able to install the yantra diagnostic app. I installed it myself and yet he intentionally put some wrong entry in his mobile and insisted for full payment as his app was not working, I tried convincing him to call customer care but he refused. He rejected delivery twice all by himself on 19th and 20th Dec while came to us only once on 19th Dec, citing reason delivery attempt failed as order rejected by customer.