Hi, we're a family with 2 adults and 2 kids of 4,5 years old. We're traveling with second class interrail tickets. We're taking the night train from Cerbère to Paris in April. Yesterday I bought our seat reservations asking for a 4-berth couchette in order to not disturb other travelers. The person selling us the tickets didn't ask any questions and sold us couchette places in a 4 person couchette. Checking the tickets afterwards, I saw that it's a first class couchette while we only have second class interrail. Would this cause any problems? If so, can I still change these tickets to a 6 person couchette?
Thanks a lot.
Hannah