2008 Subaru Forester Seats Problems

I WAS CLEANING INTERIOR OF CAR AND THE DRIVERS SEAT LIFTED UP. CAR WAS IN MY DRIVEWAY, THE INTERIOR WELD BROKE. I TOOK IT TO LOCAL SUBARU DEALER. NOW 5 DAYS LATER, AFTER NEW SEAT CAME IN I AM TOLD THE TRACK IS BROKEN. A COST OF $600 PLUST LABOR TO FIX. I HAD AN EXTENDED WARRANTY THAT COVERED THE SEAT AND WELD. I HAVE CONTACTED SUBARU OF AMERICA AS WELL. THE VEHICLE HAS 90,700 MILES ON IT. I AM 6 FT 2" @ 240#'S SOLO OWNER AND DON'T ABUSE MY VEHICLE. I THOUGHT SUBARU'S WERE BETTER BUILT. IN 2014 I HAD TO REPLACE THE CYLINDER HEAD (GASKET) WHEEL BEARINGS AND BRAKES. 2015 THE COMPETE SUSPENSION WAS REPLACED IN 2010 UNDER ORIGINAL WARRANTY THE SWITCH FOR MOON ROOF AND THEN 2 MONTHS LATER THE MOTOR FOR THE MOON ROOF WAS REPLACED. THAT IS WHY I BOUGHT AN EXTENDED WARRANTY. THE SEAT ISSUE I HAVE SEEN ON LINE HAS HAPPENED TO OTHERS WHO OWN FORESTER'S.