I am travelling Europe at the end of the Year, and have a Global Eurail Pass, but quite a few of the journeys I want to take, require seat reservations. I was able to book a few reservations through the Eurail website and also through the B-Europe website. However, on the 17th of December, I need to travel from London to Brussels, and on the Eurail Website it says that prices are unavailable and on B-europe it says that there are no journeys on that day, so I suspect that journey is sold out? However, on the 11th of January, I need to travel from Copenhagen to Prague, and on the 15th of January I need to travel from Prague to Frankfurt. Similarly, the Eurail website says that the prices are unavailable but I’ve looked and it seems I can book the seat reservations through the DSB or DB website, but it never asks me to add in my Eurail pass number, like the b-europe website did, when I go to purchase the seat reservations. So, I guess i’m just wondering if I purchase the required seat reservations separately on these websites, without adding in my Eurail pass number, will they still be valid when I go to show them for boarding? And also is there a way to add these journeys to my trip on the app, if i’ve purchased the seat reservations from somewhere else?