Why don't I receive passwords when I sign with my mobile phone?

You do not receive the notification? Check that you have a data or Wi-Fi connection on your mobile phone. If you still do not receive the notification once the connection has been re-established and you have updated the application, access the app to view the password to complete the operation.

If the password is not displayed when you log in, go to menu   > Profile and settings > Security and Privacy > Digital Signature. If you do not have a password here either, the transaction has expired and you will have to repeat it.