Help a Single Mom: Son's Graduation in Jeopardy

Hi, I am a deaf single mother trying to raise money to pay for the school fees so that my son can graduate in 5 days. We were surprised to find out that he had accumulated fees over the past 4 years, which I thought were excused due to free/reduced lunch. I am working with the program to see if it can be reduced, but I make just a little more than the limit for the program. I have just started a new job, and my paychecks don't cover enough to pay for it, as my first paycheck was smaller than I had hoped.

We have family coming out for him to graduate and walk across the stage, and his older sister was not able to do so due to the pandemic. If the fees are not paid, he won't be able to as well. I need help, and I would appreciate any little you can give to help us out. Thank you!