I think there is both good and bad things when any product is launched. But when there is sale time in flipkart I didn’t abke to buy any think becuse there servers are not good to hold a big traffic on the website so they should increase there servers power rather than advertising. Because people need service not a poster of flipkart on the streetlight pole.
And one excellent thing is that flipkart do not block the account when by mistake wrong details of debit card is put in credit card.
This is a key point of flipkart. You can also try this and experience.