Appeal deadline questions after an unemployment denial - 9 weeks in

I got a denial letter last week saying I left my job voluntarily, but I was let go as a welding apprentice. Any experience at all would help. The letter lists a deadline and a hearing process, but it is hard to follow. If you have appealed before, what helped you prepare?

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

Legal aid offices and some workforce centres help with unemployment hearings at no cost. A call is worth it.