I looked at that, and I think that's where the tickets will be delivered - didn't seem to be anything much going on in there when I downloaded it yesterday. The email I got came via the regular Coop app, and asked me to register interest for the ticket sale on 1 April. Previous presales have all been accessed in the regular app.
For Android it's here https://play.google.com/store/apps/details?id=mobile.appWeCS9BXzZa
Which is what most said about Brexit and that morning at GF was grim and then some.
An election whose results we hear then is not something I want to experience again