So at this point, what’s plan B?
Re apply? Go to a CC? Or enroll somewhere else, perhaps as a non student and then enroll officially when you can?
You need a plan B - it sounds like you didn’t follow UC’s desired instructions. It might seem as if you did, but they are saying you didn’t and there’s probably some language you missed.
You can still pursue upward - to the President’s office, etc. but why UCs start later, others are starting now - and you need another plan to be elsewhere.
They aren’t showing the love - so move on - at least have a plan to do so - so that you don’t miss the entire semester.
CC might be the most reasonable thought with a transfer in two years. And you can continue to push upward at the school.
No one here can get you an acceptance.