I booked a journey from London to Leipzig and now realise that the transfer time is impossible at Brussels because of customs etc - I naively thought that I would not be offered a train that it would be impossible to catch. So….I’ve paid for a reservation on Eurostar, but want to change the Brussels to Leipzig leg. Is it possible to do this, or do I have to start all over again and lose my reservation fee?
Also, how much time should I allow for the transfer at Brussels?
And do I need to book the Brussels to Leipzig leg or can I just get on the next available trains (after checking that they are valid for the Global Pass).