A bit of a bun fight, as it was this year.
Got my 3 PC's logged in to each of our 3 ACO accounts (I didn't check whether it was pre-requisite to be logged in in order to make your order?), waited from 9am to 9.35am in the queue.
Managed to get 4 x MEMBERS PRICES (GE and GS) on each card - YES - 4!
12 x Barnato T14, but not all in the same place (6 together and another 6 a few rows away in groups of 2 within shouting distance)
6 x BSJ Camping.
Checked it all out no problems.