This has me confused and a bit anxious. We are booked on a Med Cruise on Splendida next month. Fully Vaxxed but our final dose was November 15, 2021 When I read the requirements on the website today, it doesn’t mention an expiration date. Just fully vaxxed and booster encouraged. The 270 days part is no where to be found. Dare I call MSC? I don’t want to be denied boarding.