Registering for October

Hello, I have a tier one fee waiver. I’m registered for September with CAS reports, Argumentative Writing, and Score Previews added (all free with fee waiver). Now I’m trying to register for October as well. I’m under the impression I don’t need to add CAS, I think we only get 6 in total, and I don’t want take writing again. But do I need to add the score preview to my cart again? With tier one benefits we get two score previews. How do I make sure I get the score preview for October as well?