Complaints are not allowed in the property list.

You can complain and report to the Metrology Management Section of the Bureau of Quality and Technical Supervision.

And should first prepare for the following instruments:

You can try to test whether the electric meter can measure accurately under a relatively fixed load.

For example, if you use 1000 watt electric baking stove, the electricity consumption of 1 hour should be 1 kwh, and it will be 0. 1 kwh for 6 minutes.

If the difference is too big, you can apply for a look-up table. When checking, you can choose to send it to the local quality and technical supervision bureau for verification.