Never was mate. The online ticket site said they were sold out OR unavailable via the site several days ago. (Think they stop selling em by that method due to postal guarantees) Ought to be a simple unavailable on site. Or sold out when fact.
I thought they had sold out the initial allocation over the weekend and couldn't put any more on sale until Monday morning.
I think sometimes if a lot sell while the box office is shut they show as sold out until they release some more for online sales on the system. Seem to recall someone at the club explaining it to me like that once.