Flipkart — Flipkart sold fake pendrives

I purchased 5 256gb sandisk pendrives on flikpart 8july 2026 which cost 10, 540rs rupees, Due to some medical emergency i didn't check the pendrives during the return window, when i checked today then i found that all of them are fake and when i try to register on sandisk site they are not getting registering, request flipkart to check and refund my money