[Admission Tickets] I forgot (or didn't know) to get a Season Pass discount code when I visited the Expo, so I would like it sent to me by email or post.

Discount codes are distributed at the Ticket Exchange Counter and Ticket Resolution Office in front of the East and West Gates to those who present the ticket they used when they visited the Expo. The codes are not distributed by post or email.
The codes will be distributed after 15:00 every day from Sunday 13 April to Saturday 31 May.