I installed this paytm application a month ago, last night I was out with my friend and had to pay sum of rs.170 to a shopkeeper for snacks and I forgot my wallet at home and thought of paying through this application. but the transaction failed 6-7times and then all the transactions were all together accepted and total deduction was around 920rs. from my paytm application.
paytm needs to improve the application to make it more reliable and worth using. I would suggest you all to carry money even if you are a daily paytm user, else the situation can be very embarrassing.