Why shouldn't we use phones near Petrol bunks but Paytm allowed?

Why shouldn't we use phones near Petrol bunks but Paytm allowed?
0

#1

Whenever I go to bunks for filling Petrol or diesel I see such boards here and there, same time I see Paytm payment board too, how does it work? Can we pay via Paytm without mobile number? Funny world.