If you haven’t received PIN code yet, please, wait few more minutes, it could be delayed. Also check your spam folder. You can resend the PIN code from the app, by pressing "send a new code". If you still have trouble receiving the code after 30 minutes, ask for new one at email@example.com.
NOTE: The confirmation PIN code is sent in the new e-mail, after you entered your e-mail adress in the application.