changing SAT subject test dates

<p>I'm trying to change my SAT Math Level 2 test date from May 7 to June 4, but when I try to change in on CollegeBoard, a message comes up that says "As long as you're registered for at least one Subject Test, you can finalize your subject test choices on the day of the test."
Problem is, I can't wait to "finalize" my choices on May 7, because I need to reschedule my SAT general test from March 12 to May 7!!! Would the only solution be to call customer services?</p>

<p>You can also change it by logging to the CB account.
If you want to see more info, here is the website:
[SAT</a> Changes - How to change test, test site, or test date](<a href=“http://sat.collegeboard.com/register/registration-changes]SAT”>http://sat.collegeboard.com/register/registration-changes)</p>