The 5 uploads per month you get as a non-premium Style File account holder is added on top of all of the uploads you accrued during your premium time. So no worries about having to delete most of your styles or wait months before uploading more!
Edit Thursday Morning:
I apologize profusely about your demotions to limited account holders for overnight. Fixed now, though!
This should be a lesson to me in the future not to do things when I'm sick and my brain isn't functioning properly.
Sorry again!