On our last B2B, the cabin we were moving in was not available to move our things into the safe before our 9am excursion. The couple who were to vacate the room had not left, and the room steward was unable to do anything about it. Clearly, they were breaking the rules about when the rooms are to be vacated. We found our new room steward, explained the situation to her, and told her we had items that MUST be left in a safe for the day. She assured us she would move all our items on the cart and the luggage we had packed while we were out, and was able to find us an empty cabin to use the safe for that day. I had asked about using the ship safe for the day, but the process was quite long and involved, and seemed extremely difficult, having to itemize each and every item you are putting into the ship safe. This was the Sapphire. Do not leave any valuables to be moved for you, and if you can not get into the new room to use that safe, talk to the steward, explain the situation and ask for assistance!