Accidentally bought the wrong pass and used some of it already - and now I cant use the rest of it as planned due to the wrong pass

(Since it's a genuine error which you can explain to staff if needed + you still have a valid ticket, I would continue using it in my opinion.

Did you have issues until now ? Staff rarely look at your passport and even then they'd check first/last names and date of birth.)

EDIT : My bad, didn't read about the inbound/outbound issues. Which country did you choose as your country of residence ? Then yes it could be an issue as you won't be able to log those trains.

You could contact https://eurail.zendesk.com/hc/en-001/requests/new and mention "URGENT" in the header.

I never had issues until now, but I see that due to the inbound/outbound rules, the trip I want to take says that can not use my pass again in the country. (Germany)

I am worried that the train conductor in this country will scan my pass and say that my ticket is not valid here.  Does that happen? Or will they just see that I have an interrail pass?

Yeah my bad, I edited my post.

Which country did you select as your residence ? EDIT : Germany, okay.

Which journeys are you looking to make ? If nothing works it might be useful to get the Deutschlandticket for 49€ : a month of travel on all regional trains, trams, buses, subways basically. But of course that's a last-minute solution.

The system will block you from adding a train in your country of residence so it could be complicated to show staff you have a valid ticket.

Of course explaining the situation generally helps but you can always find strict staff.

While adding a pass day you also have to agree on using an inbound/outbound journey. Didn't this happen to you?

I think I must have selected Germany - I am trying to go from Nuremberg to Berlin in 2 days

I did happen to me that I had to agree on the inbound/outbound trip but I was confused and did not think anything of it when it happened.

The Deutschland ticket is not valid on ICE trains, which I would need to use to complete my trip (its a timing issue to make another connecting train)

Yes it's not valid on ICEs. The journey is doable on regional trains but it'd take quite long for sure. Otherwise there are ICE tickets for 52-80€ (depending on time) if nothing can be done.

We'll wait until the morning to see if our expert @rvdborgt and 2 Eurail staff @Camilo. @Mukhammad have more knowledge on this situation.

Hi @thibcabe & @jenbild10 , as what @rvdborgt explained, the only solution is by contacting our customer service team