What does "bad usage" of a phone means?
Hello, I have kept my phone in a spigen case, never fell, never got wet, never put pressure or heavy objects on it. My iphone 6 is now curved on the side where the volume keys are , what does exactly a "bad usage" of this device means ? Will a 30 minutes call that heats up the phone and makes it bend by pressing your year on the speaker mean a "bad usage" ? Thank you for your help, I am experiencing a bad situation and I really would like someone to explain me what's happening.
iPhone 6, iOS 8.3, 16 gb grey