Purchase Date not Validated is showing for my brand new Macbook pro

I have recently purchased a new macbook pro 13" from online retailer flipkart and received this on 18th June 2020. 

I am trying to see its warranty on the apple website "http://checkcoverage.apple.com" but it shows "Purchase Date not Validated" . I tried to add my purchase date manually as well but it's not accepting.