Hi All, I have owned my iPhone for 10 days. Since day one it has been in a brand new Otterbox defender series case. I took it out today to clean it and look what I found on the back. It looks like the material left a permanent mark on the back of my iPhone. I will be emailing them today to see what they can do. Any thoughts? I tried wiping it clean with a microfiber cloth and that did nothing.