The DB App doesn’t say one is necessary at all but somehow the Interrail App says it’ll be required (from E8). (Pretty sure I’ve been on this train before and cannot recall ever getting one...)
I’m looking to get back from Germany to England in July; Brussels is faster than Amsterdam but I’d like to avoid additional reservation fees (on top of the Eurostar ones).
Any advice appreciated. I’ve not yet raised a ticket with the helpdesk...

