I've been using a JBL dock to charge my iphone every night... and I'm guessing that's the cause of it. But it seems like my phone is bent vertically on the bottom, around the lightning port, such that the casing is warped away from the screen on both sides. In fact, on the aluminium parts directly above the lightning port, i can see the warping. The result, the screen clicks on the bottom right and left hand corner (the casing is further away from the screen now) Anyone that have been using the dock since September that can relate to this? Annoying as I didn't have this problem on any of the iphones that I had before. Thanks.