I lost my iPhone and know the address of the person that picked it up! How can i reach out to them?

Okay, so I lost my iPhone 5s last week and Find My iPhone was turned on. However, I wasn't able to track it before the person that found it turned it off. When they came home, they turned the phone on for approximately 1 minute (during which I was able to get the address of the person). The only problem is that it is in a building. I Really need my phone back, however I'm not sure how to approach the finder of my phone. I'm not sure where it is now because it is turned off, but I iCloud locked it and there's a passcode. Should I write a letter to them saying I'm offering a reward?

My phone number being used on a new iphone?

I just got a message saying "Your phone number is now being used for iMessage and FaceTime on a new iPhone. If you recently signed into 'The Wizard' you can ignore this notification." I'm the only person on this apple ID account and I don't know what The Wizard is. Does anyone know what this means or how it happened?

Why is my iPhone's battery dying so quickly?

Why is my iPhone's battery dying so quickly?!

Added (1). Lately my iPhone 4 has been dying super fast. I remember on Monday morning it had %100 charge and by the end of the day it was dead. I know didn't leave any apps open because I never used it that day. I've deleted every old notification on my calendar and do not have any set for right now. I rarely use my phone to be completely honest unless it's to text someone or call or use notes. I'm really trying to avoid having to go to Apple and get it restored. Is anyone else having this problem?

How to remove my iphone 6 small cracks?

I bought a iPhone 6 and my young cousin was running with it and the phone fell on concrete. There was a small crack (in the pic I showed) please tell me how I can remove it or make it unnoticeable please and thanks for all the help pleaseHow to remove my iphone 6 small cracks - 1

My Iphone charger port/cord i don't know isn't working?

It had been working for over a year, but now I have to wiggle it around to get it charging. Now it just wouldn't. I tried getting a dry toothbrush and trying to get lint out of there, but there was hardly any. Do i have to get a new port?