My ACT admissions ticket has my name spelled wrong

I’m not going to say my name on here. But basically my last name starts with an Fe and on my admissions ticket my last name starts as FFe… as opposed to Fe… at the beginning of my last name.

This is for the April 18 ACT. Can I fix this or do I have to cancel my registration and register again and pay a late fee? Anybody have advice? Thanks.

Last paragraph:
http://www.actstudent.org/faq/name-requirements.html

“If you need to change either of the names (first and/or last) previously provided to ACT, contact ACT Student Services at 319.337.1270 or write to ACT-Reg@act.org.”