Florida is an at will state so you can be let go with no reason given unless it was really for an unlawful reason, but they do not have to tell you why they let you go unless you were to file a suit and do discovery against them.
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Nothing stated in your summary of facts supports a claim or inference of wrongful termination. Employers are not required to give a warning or counseling before termination, and employers can terminate even without any evidence or belief of a work rule violation by the employee. In a few states the employee has a limited right to a statement of reasons for termination, but Florida law does not so provide. Your best option is to move on to more suitable employment.
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