How to track my lost iPhone?

Dear respected Sir/Madam,

I hope you are fine and doing well,

Through this email, i'm writing to you that i have lost my i phone currently and i don't know in which where i lost it. so this is important to me which you assist me in this regard and i want to know the last location as i was connected with that. therefore i need some details as you grant to me.

Regards,

Fahim

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