I was cheated when I bought something on idle fish, and he always harassed me with the phone. What should I do? I blacked him out, but when I make a phone call, it will also show 2G network and 4.

You can report and complain about him, or you can install Tencent mobile phone housekeeper to intercept him. On the security protection page of Tencent Mobile Manager, select Harassment Interception in the upper right corner, and select Set in Blacklist. You can either choose interception mode or intelligent mode in the settings, or only accept the white list, and you can customize the settings; If there are harassing calls in the middle of the night, you can turn on the housekeeper's night anti-harassment mode.