I bought my girlfriend a 3 day So Cal pass with max pass in December 2019, which she used once before the pandemic started. A few days ago I read that because of the max pass no longer being offered we could get a small refund. I did the chat feature on the app and was directed here: https://disneyland.disney.go.com/help/email/

I sent an email on Sunday and have not heard back. Has anyone received a max pass refund?