Hi Will,
Its changed a little this year, for me it has in anyway.
Annual Entitlement came through with a copy of my modules attached but asking me to complete it in the Capita Renewals Portal - https://renewals.capita-cs.co.uk/ (you can login with your "Capita my account" details)
My Enhanced Support came through via email to a member of Finance. Might be worth checking with either Finance or possibly admin? It would be nice if it was all done through the renewals portal for ease.
Depends how often you are using SIMS support, or cost savings really. Might be worth dropping an email to any of these? https://www.schoolbusinessservices.co.uk/mis-success-stories-testimonials/
Thanks