When my father had gotten this e-mail there was a box with red writing stating the following:
PLEASE NOTE: If you previously provided any of the documents/information requested below please advise this office in your next submission. It may not be necessary for you to resubmit these documents.
Whatever they were asking from us hadn't been submitted by us beforehand but in your case you can e-mail them back to let them know these items are already included in the initial submission.
As for current financial information, we had submitted a copy of my father's most recent CRA Notice of Assessment. You can do bank statements and it wouldn't hurt to include the various invoices you mentioned.