Due to circumstances nearly 3 years ago, I had to ...

Due to circumstances nearly 3 years ago, I had to leave this job, but little did I know there is a no-rehire list. My supervisor at the time was notified of my leave, yet made it so that I will never be able to work at this job again. The work was pretty grueling, but the pay frequency made up for it. I worked this job for three months and without reason; I, as well as many many others, are not able to re-apply because of that unjust list.