Louis Vuitton Mabillon Monogram Crossbody Bag

Louis Vuitton Mabillon crossbody bag -original owner....see receipt photos. Great bag with no loose stitches or cracks, however there are faded areas of the monogram at the top of the bag in the zipper area. I have taken into LV and was told that this was caused by my hand sanitizer. There is no peeling or cracking, the area is smooth. There are also a few water spots on the strap. Please see all photos showing the fading and water marks