Flashstar Commerce — Micromax IN 1 defective Mobile

I had perchased Micromax IN 1 mobile through Flipkart. There was a problem in Mobile & requested for Return immediately through Flipkart. Flipkart said Technician will visit & check for the fault. No one called to resolve the issue. I called Flipkart & complaint. Flipkart booked replacement of new item Flashstar Commerce denied & rejected for replacement. I took it with Flipkart very strongly. Then they updated the status for Refund. Flashstar put a comment that they will do refund after receipt & verification of the mobile. The Flash star arranged to collect the mobile by August 24th. Then they take 9 working days to clear the refund.
I have all the proofs that to proove. We all should ban the purchase from Flashstar. There is no supplier information in Flipkart. How Flipkart is working with such kind of sellers. We should ban to purchase from Flipkart. We all should make him realise if they do not help their customers.