This summer I've been to Paris. I arrived in Paris Bercy train station and decided and decided to take the metro.
The closest metro station, just in front of the train station, is very small and has only an machine to buy tickets for the metro.
The problem is that the machine was out of tickets and there were a few suspicious guys (not sncf personnel) trying to sell tickets to tourists. The only way to get in seemed to be buying them from those people. If it happens to you dont buy them, they make you pay much more!! There is another metro station (a much bigger one)about 200m away.
I saw those guys buying the tickets there and then coming back to the first metro station.
Did this happen to anyone else?