Guangzhou property charges water and electricity fees indiscriminately, how to complain?

How to collect water and electricity charges indiscriminately? For example, there is a basis for residents to use electricity and water, and the power supply and water supply department charges. If the fees charged are elevator electricity fee, corridor shared electricity fee, landscape water shared water fee and elevator building secondary water supply electricity fee, it depends on whether there is an agreement in the property service contract. If there is an agreement, it shall be handled according to the agreement. If there is no agreement, please ask the property company to come up with relevant evidence.