Hi all,
I’m planning to travel on the Paris - Nice Intercités de Nuit on 8th September. I have a valid 1st class youth global pass and would like to reserve the 1st class (4 couchette) option. I have tried to reserve this using the Interrail booking system, Rail Europe, and B-Europe (as detailed in https://www.interrail.eu/en/plan-your-trip/tips-and-tricks/trains-europe/night-trains/intercites-de-nuit), however as soon as I get to the very last step of checking out I am greeted with an error message (see pictures below). I am able to reserve the 1st class on the following day, or 2nd class (6 couchette) on the desired day, with no problem.



There are still 1st class seats available (as tickets, not reservations) on the SNCF Connect website, and I assume that those three reservation websites would either make it clear that this is sold out before entering all of your details or simply not list it as an option to reserve.
Emailing these companies has not been much help, and I have been told to call them instead. I also have the option of calling SNCF and reserving over the phone, however I first wanted to check with anyone else who has previously faced this issue, before I spend a lot of money making international phone calls.
Thanks!
