Your spot on! Well The brochures used to say 7Kw until I presented them with a stack of photo evidence that 3.4kw was max and the brochure was changed overnight!EDIT: The brouchure says the van has a 7kW on-board charger. 7kW is also widely reported in reviews.
You can ask VW for compensation or perhaps reject the van if it only charges at 3.6kW.
we all need to stick together on this as they are not doing what they were advertised to do, 5months of hassling my poor local service manager is a bit of a ball ache!