The same hotel, Meituan, has been sold out. Why is there Ctrip?

The same hotel has been sold out on Meituan and Ctrip because the two applications display different rooms. According to the relevant public information of the query, the rooms allocated by the hotel to various e-commerce companies are different, and the number of rooms allocated to various channels is not * * *, just as you show on the website of the Ministry of Railways that there is no ticket, but you can buy a ticket at the window, or for example, if you buy a standing ticket, you will find an empty seat when you get on the bus. So this is the same hotel, which has been sold out on Meituan and Ctrip.