I called to upgrade my cabin today. I was quoted $1,700 more today than when I first called to find out the cost to upgrade 3 days ago. Today they told me rates may have changed in those 3 days and that possibly the original agent did not include the vacation protection plan additional cost in what she quoted (which was still less than $1,700). In the past for an upgraded cabin I paid the cost at the time I originally booked so it was fixed, rather than the prevailing rate. I was speaking with a concierge agent who seemed new (she had to get help to look for the upgraded cabins) and she said that policy was retired "several years ago" and it is always the prevailing rate now. Just wanted to confirm this is correct since she seemed newer. Thanks!