My sister got a 6 day conference ticket that includes a waterpark visit. I got a regular 6 day ticket. She will got to Universal on our rest day, and I’ve never made it to a waterpark, so I wanted to switch her tickets. I reassigned mine to her. I read (somewhere) that conference tickets could be reassigned as long as they haven’t been used. Now she has 2 tickets tied to her and they both say nontransferable. 
Just did this tonight. Should I just wait and try again tomorrow, or will I have to call to get it worked out?