New to the forum, couple questions.

[allvia]

You usually get your acceptance email in a week.  Being accepted to the university is the first step, you would send in your transcripts if you have any to get an idea of your current situation.  TESU is the only school I tell people to apply and enroll to lock the calendar year, if it was COSC/Excelsior/WGU or any other degree provider, do up to 90 credits before applying.  To be enrolled, the cheapest option is to do a 1 credit TECEP - Medical Terminology, you can fail it and still get enrolled for $50.

Okay, that's good advice, as always. Do I need to call them in order to add the second AOS on the BSBA?

If I have some extra credits (say, doubles of psychology if they only need one), can I choose which courses to apply the degree?

You can call or email them to add the second AOS (I recommend email)