Allen Joss Ford damage my new Ranger rear suspention under gaurantee

My new Ford ranger was damaged when they repaired my rear suspention under factory gaurantee. The vehicle is the new shape Ranger. They should have just replaced some parts on the suspention. The damaged the suspention and the they het the suspention with a hammer to try and fix it. The vehicle is now a death wish for me and other road users as the rear of my bakkie leaf springs is damged and there is no stability on the vehicle. I fear for an accident. I am afraid to drive my vehicle. Thay cannot supply me with a replacement vehicle until they decide what to do. I work for myself and I am afraid that my business will close as this is my only income. I have pictures and videos of the damage.