I am replying to an oldish post here but its funny.
We were in the Vibe on the Bliss last November. On the Bliss the 19th desk is split between the Vibe and a public deck area that looks like the Vibe with the padded loungers but defiantly wasn't.
On the last full day of the cruise a lady who clearly had a pass opened the security door and stood there shocked, mouth agape, and then turned and quickly walked away. She had spent the entire cruise on the public side of the 19th deck thinking that she was in the Vibe the whole time.
We related this to the bartender and he told us that a few cruises previously somebody complained to customer service that that there were kids running around the Vibe. The bartender was shocked because there were no kids in the Vibe. So he looked at the bar records and found that they had used the bar on the public side of the deck, but never used the bar on the vibe side of the deck.
They both paid for the Vibe but never actually used it.