[PeterBarrett]

Hmm, fair enough, maybe it's only in large towns and cities. The pricing you got seems a bit suspect in that case because you would need 3 phase to run a 22kw charger and if you don't have easy access to 3 phase then the cost would be quite a bit higher as new wires would need to be added.

The charger alone would cost around 1000 (if not slightly more) so I can't imagine them doing the amount of required work for 300 pounds.

[VBprogrammer]

It's actually usually the other way around. In a rural location you are much more likely to have access to a 3-phase supply. Farms for example almost always have a 3 phase supply for running pumps, motors and heaters etc.