Frame Problems????

ok this weekend i was out practiceing and i dont remeber bottoming or flatland anything but the tab that holds the skid plate on the back has broke off and it trashed my frame and also my skid plate. The dealer said they would not cover it becasue it was abuse. I need some help or ideas to get me up and running. it is still under warranty.So what do i do. I was on a mx groomed track. :angry: