Is there something wrong with the circuit of public rental housing?

Yes, but you have to pay a certain fee.

Legal basis:

property management regulations

Fifty-first water supply, power supply, gas supply, heating, communications, cable television and other units shall bear the responsibility for the maintenance and conservation of related pipelines and facilities in the property management area according to law.

Forty-fourth property management area, water supply, power supply, gas supply, heating, communications, cable television and other units should charge the relevant fees to the end users. Where a realty service enterprise accepts the entrustment to collect the fees mentioned in the preceding paragraph, it shall not collect additional fees such as handling fees from the owners.