Flipkart — I am complaining about phone I ordered on Flipkart from seller called flashstar commerce

Address:	Flashstar commerce in Ludhiana
Website:	Flipkart

I ordered infinix zero 20 5g from Flipkart seller called flashstar commerce on 25 January 2024 and they gave the time of 27 January 2024 but still I haven't received my product and on the day of delivery date I tried to connect to delivery agent but he didn't pick my call neither call back and in evening I received the message that it's rejected but how? Delivery agent didn't bother to call neither he came to given address. When I called Flipkart executive they didn't let me keep my point and said they don't care. What's the behaviour from there side.
P.S. I have already paid for the phone and they didn't deliver neither return my full money.