I'm trying to book excursions for my family. We are 5 people, in 3 different cabins. When I try to reserve spots, my husband and I are available to choose and add to cart, but when I try and add other guests (It says I can add up to 14), I fill out, name, birthday and reservation number as requested, I then get a screen saying this account is already linked but it doesn't appear anywhere to add it to the reservation. Is this a me thing? Have I done something wrong? or should I just give up and get the others to log in and book themselves into the excursion?