Hello, All. I noticed, what looks like to be a scuff mark, on the antenna band under the home button and above the charging port. It is on the space grey 16 GB iPhone 6S. I have seen some earlier posts on this forum and seen customers/users receive the defect on their iPhone 6S's & iPhone 6S Plus's. Would any member know if this is a factory defect? Would any member have a idea as to what can be done about this situation? Mind you, I have bought my iPhone 6S from the AT&T store. I would sincerely appreciate any comments or answers.