Keep trying. I just got two singles. One for me in the north lower, one for my mate in the north upper. Either side of ST holder we know in south middle. Individual tickets still available if you use the find a seat for me function and keep changing the block. I got block 248 in my basket as well, but cant even see that on the stadium plan, and eventually just went for the north stand ones give we know others there. But does mean that 248 ticket has just been released by me...