national express coach bad driver

You don't see the dangerous bit in this video but we were travelling at 65mph and the coach overtook us and cut in very close to my van. Then he slowed down to 60, so we pulled out to overtake and he started to speed up. I pulled back in behind him, he slows down again and then the video starts and tells the rest! "Professional" drivers, I don't think so, there are lots of videos on here showing bad driving from these people!! Tried to contact NATIONAL EXPRESS they never got back to me, says it all really.