We debarked our August cruise 3 days early. Our 2 week Iceland & Ireland cruise on the Jewel of the Seas out of Amsterdam had a last minute itinerary change and cancelled our stop in Cork, and instead added an extra day back in Amsterdam due to low water levels at the locks. We went to the Diamond Lounge and asked our Diamond liaison about getting off early in Belfast. No problem, she made a quick call to verify, we got a release notice and had to meet with immigration the day before we got off the ship so they could stamp our passports. There was no fee, no extra charges, they gave us a form to present to security as we rolled our luggage off the ship. They did collect our SeaPass card as we left the ship. Upon departure we spent an extra day in Belfast, took a train to Dublin, spent a couple days there then flew out of Dublin back to the States and didn't have to mess with Amsterdam again. We lost one sea day and two extra days in Amsterdam but gained extra days in Ireland. No need to fake being sick just ask nicely and explain why you wish to get off. If your passport and Covid shots are up to date, and immigration says it's okay, there is no real reason you can't get off. RCL says you "Cannot ask prior to sailing to get off early." But, once the ship sails you can ask to debark early. There was some fine print about being charged $65 per person for immigration fees but they never charged us any fees.