Usename GP followed by your airline code
password your airline code followed by the first three numbers of your ticket stock.
GP net is a very well done site easy to use and quite reliable if there is a green dot the flight is really open and it is true . I always got lucky to make some orange one I have been bumped on some reds.
The only problem, specially on the domestic french market or to the African continent the flights can fill up the day, even few hours before.
Getting them on the phone in France is a nightmare, not worth trying...
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