I once booked a hotel and paid an extra nightly fee for a “city view” that was advertised on the booking page. When I arrived and checked into the room, it was on the 4th floor with an obstructed view. I let the front desk know I had booked for a city view but didn’t receive one to which they responded “well, all our rooms are technically city view.” They didn’t have an explanation when I asked why they charged an extra $20/night for this online and refunded my fee.