I’m surprised Americans didn’t invent this phenomenon.
Many of the hotels in Hong Kong have artificially inflated floor numbering.
I am currently saying on the “18th” floor. In reality it is the 9th floor. The lobby is on “7”. etc. I guess somebody figured out that people associate low floor numbers with lower quality motels and such and that they could increase the customer’s perceived elite status by ratcheting up the numbering system.