After he removed the bumper from his iPhone 4 device he spotted some pretty insane scuffs and marks on the iPhone 4's aluminum band. He connected with the customer service to handle this bad issue. Apple replied :
“Myself and my other colleagues have never heard this before.”
Here's another picture shows the damaged part:
Apple finally replaced his iPhone 4 device with a new one without any questions, so please if you owned an iPhone 4 device and use the bumper, please remove it and check iPhone 4's aluminum band if it is damaged or not, if this happened, please contact Apple immediately and they will replace it with a new device without any questions! Hah, tell me if you got a one..
