IPhone 4S won't charge. What do I do?

I accidentally dropped my phone and when I plugged it in to charge it won't work. I took a small card(Id or library card) to move it and it works fine. What do I do? Did I break something? Is it easy to fix or it expensive to fix?

Well you dropped it so its hard to say what happened. I would make an appt for the apple store and take it to them.

Something probably broke when it fell. You'll have to have Apple look at it.