They are amazing in scamming buyers.In the Big Billion sale, I ordered iPhone 12 mini 64 GB after discounts and exchange of my iPhone 7 128 GB landing cost was 28,060 which I paid from my card.The exchange price offered on the website was 9550 but when the delivery person arrived, he asked me to pay 5750 in cash to complete the trade-in order.I immediately denied it, I said I can pay via card but no cash he denied it and took back the order. I then checked again on Flipkart the exchange price was now 3800 listed for iPhone 7 128 which was earlier offered 9550.Its like, customer is excited about the new product, once the product arrives let's ask for more money in cash (black money) and fool them.