When I went to get gas this am (1st time i have seen gas for < in a long while) upon opening the fuel dddo, it fell off.. ;-( there is a sort of wire clip that remained on the door unit that ended up in the rear seat, upon close inspection, it k@@ks like the small plastic hing thingy on the bottom may have broken off...this would be on the hing that remained on the car side, not on the door (which now lives on the rear seat)...question: anyone have this problem in the past? how hard was it to fix?...thank you !!!!!