Can I reschedule a test after the administration date?

I signed up for the SAT Chem test last month and I prepared pretty well for it. I don't know why, but I kept thinking the test was on May 26th. I was studying for a world history final that I'm supposed to take at school later today and my friend messaged me saying, aren't you supposed to take the chem test? And I said, yeah on the 26th. He said no... they're testing right now. I went on collegeboard and looked at the testing dates and saw he was right.

I guess I'm gonna have to reschedule for the next testing date in June. Anyone know the specifics I have to go through to reschedule? Do I have to sign up for another date and pay the 50 dollars again?

The College Board website says:

"If you’re absent on test day, you’ll also have to reschedule if you want to take the tests. A change fee applies."

You'll just need to pay the $28 change fee to reschedule your test through your online account.