The scholarship offer, like the offer of admission is just that: an offer. You may accept or reject it, and you need not do so immediately. It is not binding.
As for your CWID question, I don’t know the answer, but there’s an entire thread that discusses this - I’m sure you’ll find your answer there: http://talk.collegeconfidential.com/university-alabama/1902805-cwid-p1.html