Denied unemployment, how do I appeal? after 4 years as a social media manager

I got a denial letter last week saying I left my job voluntarily, but I was let go as a social media manager. It has been a long 9 weeks. My employer's version of events does not match mine, and I have emails that show it. Should I ask someone for free legal help?

Stay calm and stick to facts. Mine lasted about thirty minutes and felt more like a conversation than a trial.