Flipkart is a trustworthy online site. It deliver its product before the due date whether in any mode cash on delivery or cedit and debit card.i think many people to buy on credit and debit card because of a fear of loosing cash but don't get the product so that they choose cash on delivery. But I have to advice those people that flipkart was one of rhe most trusted online e commerce webcide.it gives assurance on geeting the product on both credit and debit card also. it also provide some discount on purchase and some times some additional discount on credit and debit card. Also deliver the original product and brand along with original invoice.