Fix it yourself, knock off the paint with 360 fine sandpaper, find some big white powder and white latex in it, adjust it and apply it to the place where the paint has fallen, and then dry it in the shade and polish it with fine sandpaper. Buy a small bottle of self-spray paint with the same color as your fuel tank, spray it gently, dry it in the shade and then spray it. If you really can't find the same color, a similar one will do. If you adjust it yourself, you should experiment slowly, and the paint is not easy to adjust.