Nearly rear-ended by one of their lorries when I was doing 50 in an average speed section on the M4. The driver kept flashing me and trying to force me out of his way despite me having nowhere to go. When he eventually got Infront of me, he decided to purposely slam on the brakes to try and get me to crash into him. Very poor driving. Tried multiple times to call and complain but each time the phone never picked up. Hence this comment. If you see their lorry on the road with the reg WP65 XHM, be very careful.