Wrong Name On SAT Please Help Me!

Hello!
I just took actual SAT test today early morning and I just realized I put the name opposite.
ex) I put my first name on last name section and last name on first name section.
Is there any means that I can switch my name correct?
Thank you guys!

You will need to call the College Board for this kind of fix.

Does College Board often have this kind of situation?
I am worried about if they cancel my test score… ;(