I accepted a job that was negligently misrepresented to me. I left the job and they want the sign on bonus back. I don't think I should pay this back

I was lied to during my interview and phone conversations with the supervisor about a position that I was taking at a company. I signed for a sign on bonus under the impression that the job that I was taking was going to be as described to me. I left the job after a few short months as a result of the job not being as described to me and I endured pain and suffering mentally due to accepting this position. I reached out to the company about not repaying the sign on bonus to offset the pain and suffering that I endured and they disagreed with my allegations. Do I have a case to not repay this sign on bonus as the job was not as described to me?