Flipkart — Laptop Replacement issue - OD[protected]

I got a defective laptop from flipkart which cost me around 80K I have submitted replacement request and tech verified and gave me DOA Approval since then I have been contacting flipkart multiple times they always tell me to wait for 3 days and nothing changes after 3 days I again again same process. I had so much trust in flipkart didn't expected this kind of treatment its been a month.I put all of my savings in this laptop even after being a very big e commerce company they are unable to close a small bug in their system. They could just contact the seller and tell them to ship new product as I already have DOA Approval from technicians they are not doing it and not giving seller contact number so I am also unable to do it. Their customer care will just sit and say escalated wait for 3 days and same process continues forever.