Your unlucky with that wait, ordered ours from leasing company on 25th August and it was delivered Tuesday (15th March), it came from Audi Carlisle although I had no idea what dealer it was until I got the paper work last week.
Do you still only have a estimated date and not a confirmed build week, I got a confirmed build date of week 8 at Christmas, they originally told me Jan delivery when I ordered, but didn't mind waiting till march so it was an 11 plate.