I purchased a TV, it got delivered after 10 days. And after no one delivery no one came to install for next 4 days. When I asked this to Paytm they gave me a new number to call for the installation and when I tired that number 3 times it was coming busy.
You can do all of these by using app means an application. You can install these apps from app store. You have to opt any app from app store and by using it, you can recharge you DTH, Prepaid Mobiles and data card, and Pay your Post paid bills and many more.