Got a denial letter for unemployment, what now? - any advice?

I got a denial letter last week saying I left my job voluntarily, but I was let go as a store manager. I would rather hear the honest version than the polite one. The letter lists a deadline and a hearing process, but it is hard to follow.

File the appeal before the deadline, even if you are unsure. You can gather documents afterwards. That is the one part I would not wait on.