I made a huge mistake and now I am beginning to panic a little bit. I recently (about one month ago) bought UT tickets for our May trip. We will be there from May 10-17 and I purchased 6 day park hoppers (when I should have bought 7 day). I believe that in the past I would have been able to add a day to our tickets at the park and just pay the difference between the 6 day Park hopper and 7 day Park hopper. Is this still the case? I really don't want to have to pay a total $300 for a separate one day ticket for each of us (which costs $99 each).