The behavior of Shenzhen Airlines is really shameful ~ ~

There are many reasons for flight delay, such as aircraft mechanical failure, weather, air traffic control and so on. I suggest you ask what the reason is. If it is the airline's own reason, it can make a reasonable claim. I usually take the flight of China Southern Airlines, and sometimes the plane is oversold or the passengers can't make it for their own reasons, which will give some financial compensation to the passengers.

Besides, what you said here is that the flight will be transferred to us the next day. In fact, you should look at other flights on the first day (no matter which airline's flight). In your case, if you want to transfer to another airline, Shenzhen Airlines is obliged to transfer for you, so there is no problem of airport accommodation. You can ask why I didn't transfer the money for you that day.