My question involves unemployment benefits for the state of: MA

I had told my employer that I could no longer work on Sundays due to transportation issues. My employer hired a new person to replace me on Sundays. After I finished training this person, I was taken completely off of the schedule and replaced with this person. When I filed for unemployment, the claims adjudicator called me and said that they gave two reasons: 1. That I was leaving the country. (I'm not American) 2. That I was returning to school. This doesn't even make sense, because I went to an American college, so I obviously couldn't leave and go to school at the same time. I told the woman that these were not true, that they were lying. Today I learned that I was denied, so I will be filing an appeal. So, I'm looking for any advice for the appeal. I'm also wondering if I could request that the hearing is done under oath, so if they lie in court, they will be committing perjury.

I worked there for four years without a single problem. I went above and beyond for them and this is how they repayed me for my commitment.

Thank you for taking the time to read this and respond, any advice is greatly appreciated.