In Italy we can get a 50% discount when installing a wallbox, but you have to have a lot of prerequisites / authorizations and it is not worth delivering just 16A anyway, considering that the standard power of the meter is 3 kW and up to 6 kW must be increased This is not free.
But please can someone do a test and see if the preheater is supplying power to the battery even when the car is connected?
Can you also confirm that with an outside temperature of up to 0 or -xx degrees on a full charge, the estimated range is around 40 km, but the effective range is reduced to 20/25 km?