State tax filing

Thank you for this feedback.  The situation is as follows - employer incorrectly withheld state taxes from my paycheck. I requested a revised W2 with the correct state of employment noted, to then file a refund claim for the overheld state taxes [from the state I was no longer employed in nor lived]. Employer filed for a refund on my behalf (without my knowledge), received the refund and amended my W2 noting withholdings I was supposed to pay opposed to what I did pay along with the correct state employment information.