Hi! In my experience you should have got the approval by now. Evernote team is quite quick in approving request. It seems like you are requesting activation on production (and not on sandbox.evernote.com), and sometimes could take a bit longer. The best way would be reach out to them by replying to the email that you received when you activated your key for the dev account or reach out to the Evernote help via twitter. Hope this helps.