Something else we added is that we're asking those remaining voters eligible to upgrade to attending for $10 through the end of 2019 to, if it's possible for them to do so, to upgrade using a paper registration form and by sending the payment to us by mail or in person at a convention. That's because of the processing fees incurred through the online service, which are substantial when dealing with only a $10 upgrade.
I'm sure there are plenty of typos and other mistakes on the site, but I hope people will understand that such mistakes aren't deliberate. Also, as we've been warning folks since we won, most of the committee will be going to Worldcon and thus not working much on Westercon until we return from Ireland in September. It's not that we want to discourage people, but there's still lots of time to plan for the 2021 Westercon, so don't panic if you haven't heard from us yet!