damanged my car

I BOOKED MY CAR TO FIT IN THE CARTRACK DEVICE.GENTLEMAN CALLED FRANCE CAME TO FIT IN THE DEVICE I GAVE HIM THE KEYS AND I WENT TO MY OFFICE AFTER AN HOUR HE CALLED ME TOLD HIS DONE AND SIGNED AS HE TOLD HE WAS DONE A LONG TIME AGO HE WAS DIALING MY NUMBER WRONG HE WAS IN A HURRY, THEN I WENT BACK TO MY OFFICE LATER WHEN I KNOCKED OFF I REALISED THE DENT THEN I CALLED FRANCE HE DENIED THEN I CALLED THE HEAD OFFICE I SPOKE TO A VERY PROFESSIONAL LADY SHE TOLD ME SOMEONE FROM EASTRAND BRANCH WILL CALL ME THEN WISTON CALLED ME SAID I MUST COME TO THEIR BRANCH ,THAT SHOWED THAT CARTRACK IS ONLY WORRIED TO GET THEIR DEVICE AND THE CONTRACT SIGNED AFTER THAT THEY CARE LESS.WISTON TOLD ME THAT THEY WILL GET LIE DETECTOR THEN WE CAN TAKE IT FROM THERE,4 DAYS LATER HE CALLED SAID HIS BOSS TOLD HIM THAT THEY ARE NOT RESPONSIBLE AND I ASKED IF THEY DID A LIE DETECTOR HE SAID NO BUT HIS BOSS SAID THEY ARE NOT RESPONSIBLE, I HAVE 2 CARS WITH THEIR DEVICE WHEN I TRY TO CANCEL IM TOLD I MUST PAY CANCELLATION, I AM 100% SURE THAT FRANS DAMAGED MY CAR AND IM WILLING TO PAY FOR THE LIE DETECTOR, THIS IS A VERY BAD COMPANY I HAVE 5 CARS WITH TRACKER THEY HAVE BEST SERVICE THAN THIS I SHOULD HAVE NOT