Think it's working correctly then. Those clocks are the basic one's and only have a few menu's. As for the headunit it may have limited functionality but @Absolut5 isn't to far from you so may be worth a trip to see them, but sounds like it might be down to spec of the van I'm afraid
As for dab aerial is it the factory one or did he fit an aftermarket aerial
As for dab aerial is it the factory one or did he fit an aftermarket aerial