This can happen if your password has been incorrectly entered too many times.
To unlock your account, please try resetting your password. You can do this using the "Password Recevory" button on the app's sign-in screen. An email containing instructions will be sent to you. Open this email, follow the provided link and enter your new password.
We advise doing this on your mobile device.
If this didn't solve the issue, you can contact us via the "Submit a request" button below.