Well to me the logical thing seems to be to find another charger to test it on.Thanks ... as noted it's the ability to charge with 7.4 kW continuously at 25°C+ that interests me.
First rule of faulting, try an alternative and as the Car is easier to take to a charger than a charger to the car then it seems logical.
If that fails and still have problems get the dealer involved, but at the moment its not going to resolve anything keep trying the same unit.
After over 100k miles in 4 EVs all I can say is, Rapid Chargers are finicky flaky bits of kits and many a problem is sorted by just trying elsewhere.
Is there no NZ equivalent of Plugshare / Zapmap where you can find a friendly local owner with a home 7kw charger you can plug into to rule out issues with the car. Owners over here are normally more than helpful when it comes to things like this.