I have purchased lots of product from paytm before paytm I have purchase item from flipkart, snapdeal and amazon but after l know paytm also sell products because paytm only provide mobile recharge service when launch.its amazing site sometime it gives 100% cashback on recharges and products.
I have ordered many products with price 0 means 100% cash back.and we can also recharge any mobile number with paytm it works as demo card so we do not need to purchase demo sim card for recharge.it also provide bargain service for product we can also deal with seller on product price.