I tried with the same results, so asked at the window when buying my ticket. The girl who served me said they where changing the software and it would be up and running in approx. 2 weeks time.

Heard someone saying they couldn’t get tickets from behind the bar of the Centurion, always thought that was a good option.

I got mi son one for the London game from behind bar int' Centurion. So assume they are still doing them.

Hopefully just a one off then.

or maybe sold out