mozilla "check4change" is an extension that will automatically tell you/monitor pages for you and tell you for example if new test days open up. they surely will have slots that will open, it's going to be annoying, but i remember when i was trying to reschedule everything was booked up, i used this and found a test day in under 1 hr. don't pay someone yet... just be ready to take it, people drop exams <3 days away, cuz they get scared or whatever, so be ready and getter done when the opportunity (inevitably) arises.
