What can I do with a stolen iPhone?

Okay, I've had my current iPhone for nearly a year. But yesterday, the screen cracked when it dropped on the ground. My brother gave me this phone last year saying someone sold it to him for a good price. I think it may have been stolen(not by my brother, by who sold it)

Could apple get me a new iPhone 4? Or can they at least fix the screen. It's in awful condition.

Please don't hate, I'll report unhelpful("troll") answers.

My iphone isn't notifying me about texts?

Whenever someone texts me it doesn't vibrate
pop up on the screen or even have the (1) on the green square on the homescreen
i didn't change anything and its been doing this for about 2 days
how can i fix this?

Added (1). "do not disturb" is off

Should I buy the 16gb iPhone 5?

So I want to get an iphone but at first I wanted the 32gb since I take a fair amount of pictures and have a decent amount of music, but like the lady told me that the gb only counts if you download apps and stuff and the music and pictures just go into cloud and not your gb storage.

Does snapchat cost for iPhone 4S?

I deleted snapchat after I was told costed 17p on my phone bill
But when my friends use I they say it is free? They have iPods though.

I have reinstalled it and use it a lot I just want to know if it is free? (I use when I'm connected to Wi-Fi)

How to turn data roaming off in Iphone 4?

I don't have a iphone 4S. I have a regular iphone 4 and I tried going to settings > General but then I don't have a network tab so I can't do it that way.

I have AT&T and their charging me a lot of freaking money because of my data roaming. They don't even give me a text or alert saying that I'm reaching over my data limit. I need to turn it off as soon as possible.