Direct deposit did not start because although I provided all the banking info, I failed to enclose a cancelled check.

After a couple of IRIS messages, I ended up calling in (oddly enough, to the Education benefits center), and an agent took the DD info over the phone with no further proof required, and entered it into the system. Turns out that the routing number that Wells Fargo provides for DD is not what they wanted - they wanted the routing number on their actual checks. We'll see if it takes... First DD should probably be on Oct. 1. if it all works.
Have not seen a check yet for August, the first effective month.