You need a 1st class Railpass to use this service

Even if I were to pay for this separately (nothing to do with my interrail pass)??

ahh sorry ma fault

If you buy a ticket on your own it´s no problem as the ticket then will be a “1st class ticket” how ever in myexperience the service is ontime but quite expensive especially as you could normal regionaltrains that are cheaper :)

Aha no worries! How would I go about booking the normal regional trains? Is it something I’d do once I’m there or before