I just successfully bookeda PREMS fare through tgv-europe.com. Yea! The only problem is that we are all listed as age 26-59, which is fine for the adults but we are also travelling with teens. There was never a place for me to enter ages during the reservation process. Is this because it's a special fare with the same prices for all ages? Will we have any problems when we go to pickup our tickets or get on the train?
FYI, I was able to book the PREMS fare 92 days out, just after midnight France time.