Paytm Mobile Solutions — cash back is not updating in to the wallet

When i placed an order in limeroad using paytm i got 50 rs cahback. But the balance is showing 0rs. Similarly when i ordered for a product in the paytm itself, it was shown i will get 88 rs cash back. But no cash back yet. When i tried calling customer care, am not able to connect any person to get solutions, instead am asked to call other number. If i call that number it is asking me to call the previous customer care number. What the # is this. This is entirely annoying. Why we are unable to connect to the people through calls who can provide good suggestion or solution. Almost all my friends uninstalled this # app and now it's my turn, since there is no appropriate way to resolve issues