I've lost my phone what should i do?

read

If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

and report it lost to the police and local lost and found, maybe get your carrier to block the sim

and contact your insurance company.

This is a user helping other users with tech questions

forum, you are not addressing apple here  just  fellow users

then you have done all you can do

apple can't help you further, it's not legal for them to attempt to track products they sell even on behalf of the wishes of a customer

while it would be illegal for them to do so you can I suppose still suggest to them they do it anyway using their feedback channel

Feedback - iPhone - Apple