You have to feel sorry for him in a way because if the mighty Volkswagen had put some effort into CCS he would be able to do his journey.
But on the other hand he should have done his research. He bought his car from Watford? Why? I bet he didn't even test drive the E-Golf.
Everyone knows that manufacturers mileage claims are optimistic. This even applies to ICE cars and their advertised Mpg. If the car is advertised at 60mpg you know your only going to get 45-50mpg in the real world.