We can now confirm - having hit the web store software with a stick full of nails until the Grots crawled out - Warhammer 40,000 Doubles Tickets sold out fully on the day of release.
The confusion over the past week arose when the software lost count of tickets sold and we had to stop all sales while checking orders, to avoid dissapointing people by selling them a ticket and later informing them that there was actually no space for them at the event. As it turns out this was the correct thing to do as we had sold out in record time.
Our apologies for the confusion and any conflicting messages you may have heard - if you didn't get a ticket then better luck next time!