Hi all, I have my third iphone 14 pro. I had purple, gold and now I have space black. Each of them had some kind of blemish/stain on frame. It did not come off after cleaning it with fingers or cloth. I asked for exchange. I tried different colors and every color had it. I am really angry. Now I have space black version and it has it, too. Is it normal? What should I do? Another replacement? Does anybody else have it? Phone is brand new, out of the box. Thanks for responses.