在他们的网站上找到的:Check-in: When you arrive at Citybox, use our check-in terminal to check in. If you have booked in advance, use your Booking number to check in. The terminal will print a receipt and then issue a key-card to your room. The room will be ready for check-in at the latest at 3 pm, but you can check in any time after this.
邮箱:oslo@citybox.no
电话:+47 21 42 04 80.