This is the response I just received, so it's obviously possible to get address info if you know what you're doing.
Hi Lance,
Thanks for your feedback, and sorry to hear you’re having issues with the service.
If you’re working with a web developer, or if you are one yourself, you’d be able to capture this information as part of an integration built with our API. Unfortunately when using an embedded authorisation link, this isn’t possible.
I’ve passed this feedback on to our developers, and in the meantime please let me know if I can help with anything else.
Thanks,
Helen