I have a seven seat model Y with the 3rd row that I picked up last month. I had tested them out on delivery then folded them back down until this week where my wife asked to test it out for an upcoming trip where they will come into use. I noticed that it appears some brown die has transferred from the seat belts to the white seats. I tried baby wipes (which did nothing), then some leather cleaner from the chemical guys; neither have lifted the stains. Any ideas?