i registered for all the classes i needed on solar, and picked the "all at once" payment agreement. now, my question is, am i officially registered for all my classes? or am i not official until i pay? (says must pay by sept 1). and i was also wondering if i was supposed to get some sort of email confirmation or something like that to let me know im registered?

no, you're good. I don't remember getting any confirmation email last year when i completed it.

same i didnt get any confirmation. I called them and they said everything was done after the agreement. And we can pay anytime b4 the 1st of sept