Please help with this EAD card application

I tried to apply for an EAD card for my kid by efiling but I messed up with "16 Eligibility Categories ". I remember I filled in parolee based there but it turned out as (A)(04)() instead of (c)(9)() (485 based requires employer infomation which is my employer so I chose parolee). I noticed this might be an error when I saw the fee is $0 instead of $305. Is there anyway that I can drop this application and file a new one? Thanks a lot.