I've had my Galaxy S5 for about a month and got a SlimArmor case the same day. I noticed over time random marks on the edges of the glass. More have appeared. Rubbing them with my nail they don't have any height difference saying they are scratches. I have tried screen cleaner and a cloth for led screens. They marks seem to disappear but slowly come back. The phone has never been dropped or scratched. In my pocket all day.Anyone else have this problem and can this count towards a replacement phone? Mark is in top right corner of picture.