My soufflot has a bit of stitching coming off from only one part of where the strap is held onto the bag at. it's weird because I never carry anything heavy and even if i did, you'd be able to tell on other parts where the strap connects to the bag also. bag is a few years old i really don't want to pay for a repair. has this ever happened to anyone and do you think lv will repair it for free?