Unscheduling NCLEX/exam fee

Hi! I've been Google'ing all morning, but I can't seem to find an answer anywhere, and I can't call Pearson Vue until Monday. I'm hoping I can find some help here!

I am planning to retake my NCLEX, and my ATT is going to expire in the second week of February. I have already paid the examination fee, but unfortunately, unexpectedly long hours at work, illness, and personal issues have prevented me from sticking to the study schedule I had planned for myself. I have about 3 weeks left until my test date (the day before my ATT expires), and with my rocky schedule, I'm incredibly fearful that I will not have enough time to prepare for the exam.

If I unschedule my exam with enough notice, will I be able to use the exam fee that I had already paid toward my next ATT? My hope is that I can let this current one expire, then reapply without having to forfeit my $200 exam fee. I understand that it is unlikely. If anyone has been in the same boat, I am interested in hearing about your experience and hope for good news!