How to book tickets for Hasuhai Swan Castle Hot Spring?

The scenery is average and the service is poor. I plan to have a good time for three or four hours when I come. When I bought tickets at Swan Castle Hot Spring, I forgot to ask if there were any hourly tickets. The waiter bought a full-day ticket without asking, which was twice as expensive as a four-hour ticket. When the child went in, he found an hourly ticket for the front desk to exchange. I couldn't answer, asked why not, and said there was no reason. It's really scary. It is disgusting not to suggest coming here.