Secondly, if it is indeed misjudged after verification, it can be fed back through the national government service platform. Open the WeChat applet of the national government service platform → Open the home page epidemic prevention health information code → Take a screenshot after receiving it → Prompt for close contacts → Click to view personal health information → Click I want to correct mistakes below → Click I want feedback → Upload a screenshot of health code and a screenshot of big data travel card (involving close contacts of the same household uploading a screenshot of family travel card) → Click Submit. Then wait for the results of the epidemic prevention department.