@Jezston and @Howard thank you for the responses. I will do this and see where I get with them. It's a big company which appear to do office removals and storage etc so will probably not want people driving their vans like that.
Tweet: "I'd like to speak to you about one of your drivers deliberately forcing me into oncoming traffic today" - that'll get their attention pretty sharpish probably
Also report to the police and tell the company you've done so - complaints might be stacking up against the driver
@Jezston and @Howard thank you for the responses. I will do this and see where I get with them. It's a big company which appear to do office removals and storage etc so will probably not want people driving their vans like that.