[Resolved]  Flipkart — Issue while returning a defective product

Website:

Flipkart.com

I've ordered Realme C21Y phone on 27th of August, and got the package on 29,
But the product is defective, having screen flickering isssue.
Im trying to do a formal steps to return the device. But there is an rerror occuring saying "please try again later" .

Since the return policy is valid only upto 5th of September. I reached customer service 3 times. But they don't even understand the issue just asking repetitive questions with unnecessary troubleshooting steps when i decided to stay untill i resolve my issue they leaved the chat by themselves.