I too was affected by this and Celebrity called me a couple of weeks ago. I have not cancelled or agreed to anything regarding my reservation.
Last Week I received and email from Celebrity telling me "our booking system experienced a technical error, which resulted in incorrect pricing for your upcoming sailing. The error was discovered and corrected; however, there were a few bookings that still reflected incorrect pricing. Due to this error, a reprice of your reservation was necessary"
My reservation has yet to be repriced nor do I even know what the new price is. Celebrity did offer a goodwill $100 OBC along with a 10% discount off the prevailing fare (whatever that is) for the inconvenience. A little unclear if I now lose all the other perks as well.
Still waiting to see what happens next.