Nice Palace, really liked the Mirror's Room. Howev...

Nice Palace, really liked the Mirror's Room. However, they did not give us the audio guide that we paid for because 5 30 is the closing for audio guide. Seriously? The palace closes at 6 30 and you can see it in 40 minutes. And there was a person at the audio guide desk, which just refused to give us, even though we paid for it. This made us feel scammed. We paid for a service which we did not get.