I'm trying to make a seat reservation for the TGV 8530 from Dax to Paris Montparnasse at 8:29 to 11:54 on 18/06. The Interrail website says that prices are unavailable for this train.
Howeber, if I try to book through travel.b-europe.com , there are still some available seats. However, in order to book my seat, the website requests a Pass Cover number in the "Ticket Details" section. Since I have a mobile Eurail pass, I do not have a Pass Cover number and am unable to complete the reservation. This is also the case with 3 other friends of mine, since none of us have a Pass Cover number and therefore could not book the reservation.
How can I receive a Pass Cover Number? Is there an alternative way to book a seat on this train? Any help would be appreciated! Thanks guys!