ive only owned my car for a week or so now and when i looked at the drivers seat theres like a light blue mark on the white part of the leather, it looks like the previous owner had rubbed it with jeans on.. i cant tell if its just the white leather worn or its some sort of stain.... any one else have or seen this ??? any ideas what i can do ? ive tried to wipe it with no joy ! HELP ?? LOL