The hotel has confirmed it by SMS, but what does it mean to book three days in advance in brackets behind the room in the hotel information?

Generally, it is the hotel confirmation information, which means that you can check in. The so-called information is three days in advance, so you don't have to turn it off. This is just a reminder, nothing else. It is irresponsible to call the hotel front desk and ask you to call Ctrip. As a hotel waiter, you actually care about such an order. Just see if there's an appointment.

If you have a chance to come to Zhuhai, you must stay in our house! Of course the service is in place!