Do you need to make up the difference (working day price and holiday price) when booking a hotel for Ctrip holiday?

No, as long as it's at the price you booked the room. When you decide how much money, you can get how much money then. (If you are not at ease, you can confirm with Ctrip. )

Ctrip doesn't need to pay for booking a hotel. They charged the hotel a commission. However, due to the shortage of rooms during the National Day, the general online hotel reservation will only be kept until four o'clock in the afternoon. If you arrive late, the room may be cancelled, so when you make a reservation, you should indicate when you arrive at the hotel. But the regular hotel will contact you when canceling the reservation to confirm whether to keep the room. You are rarely told that there is no room after you arrive at the store.

In addition, you can also guarantee the reservation, that is, provide the card number to Ctrip. If you don't arrive at the store, you will also be charged a room fee for one night, but one advantage of ensuring the reservation is that you must leave a room for you.