Can I complain if the property is rented without the permission of the merchant?

If the property is rented out without the permission of the merchant, it is illegal and you can complain to the relevant departments.

You can complain to the relevant departments of the local government, such as the Urban Planning Bureau and the Housing Authority. You can also seek help from local consumer associations or legal aid agencies and learn how to safeguard your rights and interests.

In short, if you think that the behavior of the property violates your rights and interests, you should take timely action to safeguard your legitimate rights and interests.