Red Rivet Jeans size unknown

Red Rivet Jeans. Skinny. Long legs. They say size 15, but they've been taken in at the waist. they have two buttons, a flap, then three more buttons and zipper in front closure. studs on front pockets. Studs and flaps on back pockets. Some issues, see pics. maybe they could be fixed with some patches or iron-ons.