i would just leave it alone, ask your parents (I'm assuming you're young haha) if you have mobile insurance, if you do report the phone lost, and get a new one! haha
what phone is it?
if its a touch screen just call the network send the resiept back and say its touch screen didnt work :L
or if it was something else call the network a`nd make up that you brought it and it wouldnt turn on? =]