So I have a 32GB VZW iPhone 5S that I got on launch day. It appears to be defective as whenever even the slightest amount of pressure has been applied to the screen it "pops' or makes a popping sound. It almost seems like the glass is loose or whatever. There is no damage to the phone or the underlying touch panel. I have AppleCare + but I purchased the phone at Best Buy. Should I go to BBY or Apple to have it looked at/fixed/replaced?