Review Driver of company van

The male driver with long grey hair driving a white Enfield Services company van down Albany hill this morning nearly crashed head on into me.I was turning right into a driveway as the van was coming down the hill I had to give way to him but he purposely drove erratically towards me on my side of the road pulling the fingers. Unfortunately I didn’t have time to get the number plate as I was a little shaken up by this. I suggest for the company’s sake you review who was driving this vehicle at 11:30AM Saturday 20th June