Called up again and they told me the hotel changed this.
I got the confirmation email that says for 1 night. They also see that I made it for 1 night.
After on the hone the past 30minutes with RA (or A) desk, she called up the hotel and changed it to 1 night, but it doesn't show on my reservations that it was changed.
It was 180GBP/night "luxury weekend" package.
I should not have to go through this much hassle for a hotel room.