I'm glad things might work out for you. Just a caveat - what happens on the ship is often not the same as what the person on the phone says, although Disney tends to be more reliable as far as everyone talking from the same playbook. I'd not waste any time going to the youth staff once I boarded the ship and getting things worked out.
Enjoy your cruise! Disney doing Europe cruises was wonderful news and I have no doubt you'll love it.