So I tried to upgrade my room from Balcony to Club balcony. Did a mock booking and also looked at another site.
The difference in price was $50 more than what I paid.
I called NCL 2 different times with the same answer. Instead of letting you upgrade they tell you the price is $800.
Now we all know they see what we see when doing the mock booking. The price they are giving you is the high end bid price of the upgrade site they do not try to rebook you they just say no that is what I am seeing. I find this very lame.