The information contained on the paperwork is designated by the signing services. We here at Notary Cafe help facilitate the mailing and delivery of the order confirmations, However, ultimately, we do not decide what is included in the text of these emails.
I always suggest asking for the address if one is not shown. Whether by email or phone, I believe most of our Notary users have had success in getting the information that is needed.
That said, I will definitely pass your suggestion along. We can always use tips like this in discussion with our Signing Service partners to help them make the process easier for everyone involved.
Thank you for your input!