Traditional Culture Encyclopedia - Hotel franchise - Is it illegal for a hotel not to unsubscribe?

Is it illegal for a hotel not to unsubscribe?

It is illegal for a hotel not to cancel its reservation.

According to China Travel. It is illegal to cancel the hotel without checking out after booking. If the hotel stipulates that the reservation cannot be cancelled or refunded, it belongs to the overlord clause; The overlord clause is the format clause and is invalid.