I am on the side of those satisfied with the event anyway.
I think that you have made almost the same mistakes as last year, but this year at least at the beginning people did not complain and enjoyed the event.
And I think that refunding scrolls is a good idea (Shows that you care about your players) , but I understand that the administration don't want to deal with this because it is extra work for nothing.
Anyway, I don't care.