Yeah it is , just seems very steep £20 , even on the most expensive public chargers wouldn’t even cost that much.
Assuming the car only had 10% battery even adding an extra 70% (50kWh) at 89p/kWh (my local high speed chargers cost) would cost around £45.
My dealer supplied the car fully charged, no cost.
Please excuse spelling/typos. Apart from being a clot it turns out I had one on my cerebellum that's now causing various problems!