Finally got a reply. Apparently my email doesn't come up with anything, despite having preordered the album and have received the previous presale codes.

How much are the standing tickets?

I emailed them about 30mins ago... No response as of yet

I'm happy I'm not the only one who hasn't received their code.. But still... Where are our codes?!?!?

I don't have a code yet either, I assume they will be out later today? I have been waiting years and years for an opportunity to see Muse Live, there's no way I'm missing out on this or the tour next year