That’s the page for when it's sold out. What I would do, however, is keep refreshing furiously for the next half an hour because you do get tickets come out of people's baskets.
I don't think it is. That looks like the page where the code has gone in wrong.
Double check the code is being put in right!
On second glance, you appear to be correct. It hasn't sold out and I apologise for unintentionally misleading anyone. From the memories of two years ago, it is a similar style of format and message when it does sell out.
No, nothing is working and code is correct. Have copied directly off City's email. Have even checked in account online, same code, copied from there, typed myself one character at a time ... but same result, so either City has sent a wrong code or it's sold out. :/