I don't know if I can answer your reply properly because my English is not good enough.
I asked them not to provide hard water because my digestive system is bad, and they agreed.
In Korea and Japan, where I work, most people know the meaning of soft water and hard water, and they distinguish it.
This hotel is in Korea, I am Korean, and all the hotel employees who I talked to are Korean.
When I sent them an email, they called me to confirm, and I talked to them. They were exactly aware of my request.
In other words, this issue is not a translation issue.
They were not fully aware of the benefits they had to offer, and one of them was a turndown service.
Turndown services are available to Fairmont Gold Room and Platinum members, and I found out that they provided turndown services to customers who stayed in Fairmont Gold Room the same day as me.
About the location... You're right. If the location of this hotel is not good, I shouldn't have booked this hotel.
The reason why I stayed in this hotel was not for sightseeing, for work, but for experiencing this new hotel. It's a brand that doesn't exist in Korea and Japan, and it's a brand that I've never been to before, so I was curious about what kind of hotel it is.
What I wanted to say, however, is that Yeouido is not a good location for travelers, and if there are any business reasons to stay in Yeouido, there are many alternatives besides Fairmont Seoul.