I have received CSAs a couple of times, some work, some need encouraging.
E-mail them a couple of times a week.
Check their ledger, and recommend the actions they could take to qualify as EA in the next month.
Encourage them to contact you, tell them a little about yourself and your journey with SFI.
When they do start logging in regularly teach them duplication, and possibly re-assign a few affiliates to them.
All the best.