I used to work for a very small family-owned startup with minimum wage, zero benefit, and it was very exploitative and toxic in nature.
The family had other businesses and they used to run the startup on the side, more like an experiment. My colleagues and I were humiliated on multiple occasions including once when I had to take a few days off for some family problems, which they were aware of. We were asked to leave the job multiple times as we were very much replaceable by freelancers. So we were told.
I waited patiently quite long for the next best opportunity. In the meantime, all my colleagues left due to the mistreatment and I was alone in the team handling multiple people's work. I was the last one to leave, to their surprise. Ironically, they suddenly realised that they can't find another employee for my place very soon. I left them anyway and joined my new company, but these people have been trying to contact me every week for almost three months, trying to persuade me to do their job as a freelancer.
I tried ghosting them, told them I signed several contracts that forbid me from assisting any other business, but in vain. They are reluctantly sending me lists of tasks as if I'm still on their payroll. I'm avoiding them now. I don't want to do anything for them and have the stress again which I left them for, and also as I know them, they are not going to pay a fortune. How do I get rid of these people without being super rude?