Deception, demand a receipt, do not give the phone into the hands of the seller unnecessarily, but it is better to immediately register on the vodafone website and see what this crooked-armed monster set up there, at a price of 85gb, which is $ 20, sold 26gb for $ 20 (which is written in the application costs $ 7 , he apparently put the difference in his pocket) moreover, this seller was asked five times, yes, yes, we smile, shake hands and cheat. And this is vodafona's official representative at the airport. He also uses the fact that it is extremely difficult to get back to him, because you will not be allowed to go back through the exit, you will have to go through 4 security checkpoints with your passport, so check everything on the spot.