Thats very weird.
Ok, so check the hardware version of the infotainment.... does it end in B or D.
If it ends in D, you should have software version 1788 or 1803..... if it ends in B it will be 1664, 1666 or 1668.
If its a "B" you won't get nav in dash because VW disabled it. If its a "D" you should.
It will only be on one screen at a time.
With NavPro, you get it on both.... also GTE NavPro is 1900 quid.... the GTE one is more complex, showing electric range and charging points etc.