I took a doctor ordered 30 day medical leave for depression and anxiety. The day I was granted leave my employer posted a job opening in my area for my position. Upon returning to my job 30 days later I was given a final written warning and given a target to hit by the 15th and 30th of the month to continue employment. After a few days of the month I was given an oral threat that I would be let go by the end of the week if they did not see the productivity desired. On the 12th of the month I was terminated. The written warning clearly states that I had till the 15th. The new position offered, the probation, and the threats were a result of my need to take medical leave. Did my former employer violate any labor laws?