What do I do if my Navigo travel card no longer works?

If your Navigo travel card stops working, contact an RATP agent. If there is an anomaly, you will be given a new Navigo card immediately, in exchange for the defective card.

What do I do if my Navigo Découverte card no longer works?
If your Navigo Découverte card stops working, contact an RATP agent. If there is an anomaly, you will be given a new Navigo card immediately, in exchange for the defective card.