Can I trade my cracked iPhone 5 for money back?

Okay, so I already have a 6. The bottom of my iPhone 5 is cracked. Can I trade it into Verizon for a $2oo credit? Or is it too late since i have already purchased the phone. If i have to get the screen fixed, is it worth getting it fixed and then turning it in for the money?

I believe you can sell cracked screens, but they will deduct value off of the phone.