I'm traveling by TGV from Paris to Arles (and back) in May. I followed the advice in Rick's book and booked a TGV ticket from Paris to Arles via the SNCF website when I was 120 days out. I had no trouble getting Prems tickets, choosing the print at home option, or paying via PayPal. However, on the return, the only Prems seats available are the "ESPACE Famillies" seats (which I don't want), and there is no print at home / PayPal option. Help!
You can buy it at
https://www.trainline.eu/
Is the return back 120 days out. Maybe that is the problem.
SNCF only accepts PayPal for Prems-fare tickets. For other fares, the SNCF site usually requires a Verified by Visa or chip&PIN type of card. Other agents such as TrainLine (€ rates) and RailEurope (US$ rates) don't have that issue.