Flipkart — Complain about replacement/return rejected continuously three time. Delievered diffrent indoor and outdoor unit of voltas ac

I ordered voltas 1.5 3 star voltas split ac on 20 feb 2023 which order id is. Od[protected] . It deleived on 24 feb 2023. After delevery the product i saw that indoor and outdoor unit cbu code are diffrent means both are mismatch. So it cant be install.I raised replacement and return continuous three time flipkart rejected continuously. When voltas aurothised technician visited at my home he said due to mismatch of cbu code it cant be install.He wrote me on his letterpad .I send the letter to flipkart but flipkart is not solving my issue. I am distrubed about my replacement fro last 1 month and 4 days.