Flipkart — 3 seater sofa cum bed - manufacturing defect - refund not being accepted

I order a 3 seater sofa cum bed on 24-aug-23 from Flipkart and got delivery on 11-sep-23. The sofa was good in compact size but have poor quality and defects so I requested return and refund, this was done under return period of 10 days as per Flipkart policy. I have raised complaint of return and refund by Flipkart app. Now the flipkart updating fake resolution by showing tech visit completed and my Query has been resolved by trouble shooting. I have made 6 times return request via Flipkart but all the times they rejected my complaint / request. Flipkart is harrassing me by giving dates to make tech visit but no tech visit being completed. I have done so many follow ups / mails and conversation but they are not initiating my return and refund request.
I asked filpkart to provide their nodal officer contact details but they abruptly deny.
I request Kindly help on this matter.