Mine also arrived yesterday.
I phoned the ticket office yesterday (as I leave before the post so didn't know they'd arrived, and was worried as the cheque hadn't come out yet). A helpful chap said they are still working through the applications (INCLUDING Gold), but expected to have them all sent out by the end of this week.
He said they've been working till 10pm some nights.
I dont know what to do, it is the last day of the world, and my ticket hasnt arrived and its only 14 days til the game, and i want to snuggle with my ticket in bed and stick it to my monitor at work, as well as use it to give me VIP entry into Spearmint Rhino