WHILE DRIVING MY CYBERTRUCK ON FREEWAY USING TESLA'S FSD (FULL SELF DRIVING). VEHICLE SUDDENLY ACCELERATED, GOT OUT OF CONTROL AND CRASHED IN TO THE RAILING. LUCKLY I WAS ABLE TO CONTROL AFTER THR CRASH AND DROVE IT SAFE LOCATION. TRUCK IS SEVERELY DAMAGED AND TESLA IS NOT RESPONDING TO MY COMPLAINT. WE NEARLY GOT KILLED. PLEASE HELP.