Silent switch

My silent switch is very faulty
When I move the switch to the silent side, the phone wont vibrate, there is no silent logo on the screen.

However, if I move the switch a bit to the right, back to the non silent side, it vibrates, and enters silent mode. But if I let go the switch, it goes back to non silent mode...

In short, my phone's silent switch is messed up.
My question is, will Apple fix this for free? I didn't remember doing anything wrong with my phone....