Fyi you might want to print or take a screenshot of the old price booking before getting on ship. My sailing they charged everyone the higher price but luckily, I spoke with concierge and they honored the original price since I said it was booked via 130 days out request.
Upcoming sailing in Oct, they finalized when pirate night will be on. Sadly, I guessed the wrong date it would fall on. So now I'm debating on switching or canceling. If you modify/change the date even though you booked with old price they will charge you new price. I might just wait and ask concierge on board to see if they can waive that too.