Denied unemployment, how do I appeal? - first time posting

My claim was denied after 19 weeks of waiting, and the letter says I have a short window to appeal. There are 8 people counting on me, so I am trying to be careful. The letter lists a deadline and a hearing process, but it is hard to follow. Did you bring documents or only talk?

Keep everything in writing and save the confirmation numbers. It made the follow-up calls so much easier.

I printed my emails in order and wrote a one-page timeline. The hearing officer kept going back to it.