2007 KEYSTONE COUGAR Suspensionrear Problems

WE BOUGHT A 07 COUGAR KEYSTONE TRAVEL TRAILER. THIS PURCHASE TOOK PLACE AT THE END OF FEB. ON MARCH 5 WE TOOK OUR NEW TRAILER OUT ON OUR FIRST TRIP TO LAS VEGAS NEVADA FOR A 3 DAY NASCAR WEEKEND. WE ARRIVED AT OUR CAMPSITE AND WENT TO SET UP. WE DISCOVERED THAT WE HAD A BALD TIRE ON THE REAR DRIVERS SIDE, 3 OTHER TIRES WERE WORN, THE BACK AXLE WAS BENT. WE IMMEDIATELY CALL FOLLEY'S WHERE WE BOUGHT IT FROM AND THEN WENT TO FIND A PLACE TO GET IT FIXED. WE SPENT MANY HOURS AND DAYS ON THE PHONE WITH KEYSTONE RV COMPANY AND TRAVELING FROM ONE REPAIR SHOP TO ANOTHER. WE WERE TOLD BY KEYSTONE AT ONE POINT TO TAKE IT BACK HOME TO WASHINGTON TO THE DEALER WE BOUGHT IT FROM. MY HUSBAND AND I DID NOT FEEL THIS WAS SAFE. SO WE COMPLAINED ON...