Hi Gareth,
I can assure you that Yorkshire is Brexit country, my ability to drive in either a Kilometers or Miles setting is a skill I picked up from years of overseas work, not easy to master, but do-able with practise!
An email has been sent to the salesman that 'dealt' with me at time of purchase and hopefully a reply will be forthcoming tomorrow, I noticed in the handbook that it is possible to turn off the 'Oil change required' dashboard notification but I don't know what Audi response would be for any future warranty claims, but, I purchased a 'brand new unregistered car' and service intervals should reflect this.
Bill.