If you'd like to get notifications about status of your "Express" transaction without creating an account, you should provide your e-mail address.
If you do not want to provide an e-mail address then you should write down your transaction ID and Security Code (4 chars) presented on the next step.
Transaction ID and Security code is required to retrieve transaction status and to send an transfer confirmation.
Logged users do not need to write ID or Security Code. Logded users have access to Express Transaction List page with all "Express" transactions..