Omnitechretail — Return and exchange product

Address:

Mumbai

This seller is not ready to re-review my exhange product which was denied by delivery person meaninglessly. There were no issues with the phone and it was just denied. I've been in circles with flipkart cs but they are not ready to help me out on grounds of policies with the seller. When I am frustrated and want to return the product completely, to not deal with flipkart anymore, they cant do that too. It's like making a wrong decision in life and I am repenting for it. What is this way? I am completely stuck.