Nanook, how much of a BC upgrade did you pay? Regent just booked air for our Sept. 30th Voyager cruise out of Amsterdam and in addition to the deviation, and the non-gateway airport fee, and the $2,598 advertised fee for 2 Business Upgrade, we were also charged an "Air Differential" fee of $1,200. In other words, the BC Upgrade turned out to be almost 50% more expensive than advertised.
Were you also charged a huge "Air Differential" fee?
This seems like false advertising on Regent's part.