This is the serious problem in this application. When you try to bind your account with this app or are you going to bind an old account it will not recognise you. It means if you make some point and after you uninstall this app and after some day you try to access your old account which is not possible if account you accessed you loose your point which is not worth it.
Other problem is the point which take time to make the point is more and there is no surety of points you will get or not.
So guys dont weast your time & internet on this app.