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

My claim was denied after 3 weeks of waiting, and the letter says I have a short window to appeal. I am in Little Rock, in case local advice matters. My employer's version of events does not match mine, and I have emails that show it.

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

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.