You are absolutely correct. I am on a BtoB cruise 40 days Nautica Singapore to Barcelona next May. The price has significantly increased since I booked it (+ €2,500 per pax). When asking Oceania to add the Olife Ultimate to my booking I was answered that I need to pay the current price thus adding €2,500 per person. And my estimate of the additional perk through Olife Ultimate was ... €2,500 per person! As a consequence, I changed nothing to my booking.