how to report missing iphone?

Hi, try this. https://support.apple.com/en-us/HT210515

Hi Forest Stream, apple will allow you to lock and disable and delete the contents of a device and locate it using the find my app. Use the link I posted above.

Ask your carrier to blacklist it.

You would make a police report.

Apple does not get involved with lost or stolen devices.

At least advise how can apple assist to disable it.