I will be travelling in Scandinavia in September and got a 15 day Interrail pass. I will probably downgrade it to 10 days due to travel plan changes. However I have already booked seating reservations for trains in Sweden via SJ stating the pass number of my 15 day pass. In the reservation in the App it also states my pass number and there is no button to change it. Is it possible to just change the pass number on my reservations without paying extra?
Thanks in advance for your help!
