June Registration help?!

<p>I am registered to take it this Saturday... but there is an 85% chance that I won't be able to make it! My schools graduation will probably end up getting scheduled on Saturday due to rain, and I have to be there since I'm a Junior Marshal. I am kind of confused on ACTs website because I don't know what I'm supposed to do to change my date. This is what it says when I click the option "The late registration period for this test date has ended. However, you may be able to [make a test option change on the day of the test.]"</p>

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<p>Test Option Change on the Day of the Test</p>

<p>-Take your ticket on test day to the center where you are assigned to test and tell the staff you want to make a Test Option Change.</p>

<p>-If there are enough materials, space, and staff for your preferred Test Option at that center, and after all students with tickets for that option have been seated, you will be admitted. (You will be billed if you add Writing.)
If not, you may test with your original Test Option, or you may leave the center with your ticket. You may then request a Test Date Change for a later test date and select a different test option.</p>

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<p>Can someone please help me out? It's kind of urgent. From the section above, does that mean that I will have to go in at the time of the testing (8:00am) and talk to the staff about changing my date and then change it through them?</p>