Being rejected on board when I got there and the immigration officer and the staff who were doing check in that come from MSC were not professional at all as they were not familiar with immigration rules and took me three hours there to tell them that my validation of my visa but they were unable to tell by themselves and had to call UK immigration office to check it. But they did not check with Irish immigration which is the key point they reject me to be on board and they don'???t seem to know the visa policies very well. I do suggest everyone who chose them to be extremely careful with your visa regulations as there was only one immigration officer and if he/she did not buy it and said no, then you won'???t be able to be on board even though you were right. And when you communicate with sea scanner to get a refund, they only help deliver the message and does not get involve in the case at all.