https://www.ritzcarlton.com/en/journey/travel-tips/club-experience/

https://www.fourseasons.com/seoul/services-and-amenities/executive-club/

Another good video showing exactly how this works: https://www.tiktok.com/@hannahskorean/video/7498552619493903623

This is a good short video of how you do this: https://www.youtube.com/shorts/g3DzSc7T8_A

I like this Korean YouTuber's travel content generally and his YP review gets his trademark thorough treatment. He doesn't like YP all that much, but you can draw your own conclusions from the footage: https://youtu.be/nlreX8MIJvc?si=Rfx__exB84ldBNnD