I actually meant using the contact us on audi.co.uk you can chat to customer support - it may be the same as facebook - not sure but it is real time chat on the audi site.
My build date jumped around so much - the actual week date it started the build (the 10th June) was a week earlier than my original estimate (when I first logged into my audi the estimated build date was the 17th June). It jumped forwards to the 8th May and back to the 12th July - before settling pretty much where it started. I would expect the same for you, it can move forward - it does happen - but until you get status 20 - its not set in stone.
I am sure you guys are aware if you log into my audi and then put the URL:
https://www.audi.co.uk/myaudi-public-api/services/v1/orders/XXXXXX
(where XXXXX is your order number) then it will show you more detail and exact times of status updates, and your current status. But you MUST log into my audi first or it will not work.