Deleting your account permanently removes it and everything stored against it. This cannot be undone, and we cannot restore it afterwards.
Nothing that identifies you. Aggregate exhibition statistics that cannot be traced back to a person may remain, and records we are required to keep by law are retained only for as long as that obligation lasts.
Checking whether you are signed in…
If you can no longer sign in, contact the exhibition organisers from the email address the account was registered with and ask for it to be deleted.