Hi Apple, i lost my phone, and this is already reported to apple service center.Can i ask if you will send message like Dear Customer,Your lost Iphone 11Pro Max has been located today.Check location now https://apple.com.help-user.me/8MyKD

No apple WOULD NOT send you a message like that.

If you enter your details on that site you give them your password and allows them to turn of Find MY on your iPhone.

If you responded to the fake site and provided the information, then yes, they have full access to your account.

Typically, all they want it for is to turn FindMyPhone off, log it out of your iCloud account and fully erase the phone so either they can use it as their own, or sell a fully functional phone to someone else.

However, who knows what other personal information they'll try to dig up while they can access everything on your phone.

And I used Safari to visit the web site the crooks gave you an address for. Didn't this raise a red flag for you?

See here for what to do: https://support.apple.com/en-us/HT201472.

Apple will not contact you about a lost or stolen phone. If you receive any message, it will be a scam trying to get your personal information.

Nobody from Apple will contact you.

Apple doesn’t take reports of stolen devices.

This is Apple’s site for what to do:

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