u/Effective-Hope-8978

Hey so I got admitted to CPP as a transfer student and submitted my SIR. Just got hit with a rescinded admission notice because I missed the orientation enrollment deadline. Fully my fault, it slipped through the cracks and I should've been on top of it.
Already submitted an appeal owning up to it and explaining my situation, now I'm just waiting to hear back which is honestly killing me.
Few questions for anyone who's been here:

1. Anyone get rescinded for missing a deadline like this and successfully appealed? How long did it take to hear back?
2. If your appeal got denied, what'd you end up doing?
3. Anything else I should be doing while I wait?
   Calling admissions directly, emailing my counselor, anything?

I was admitted to UCSB as a transfer student and was given my second choice major. After careful consideration, I have decided that the second choice major is not the right fit for me. I am very passionate about my first choice major, which is economics. Is there any way I could request a change in my major? If that is even possible, I would greatly appreciate it.