Unfortunately I don't hold out much hope of this getting sorted. Although the manuals say DAB+ supported there will probably be some fine print somewhere that gets them out of it.
I hope that I'm wrong
Have an Audi Q3 2017, lost all National DAB stations. Audi Watford wanted me to bring it in for a diagnostic check. Glad I found this topic before paying out to diagnose a fault that they know doesn't exist