It’s a shame you didn’t discover this last week when you could have signed up for standby testing. That deadline was November 30th. You could try contacting the folks at ACT, but it looks like you’ve missed all deadlines.
http://www.act.org/content/act/en/products-and-services/the-act/registration/standby-testing.html
http://www.act.org/content/act/en/contact-act.html