Under the laws of all states in this country, if one's accrued administrative leave time is to be curtailed, the employer must give the employee adequate notice to either use the vested time or lose it.Since this was not done in your situation as you have written, you are entitled to compensation for this 1,300 hours of vested time. I would speak with your supervisor about such. If the matter is not resolved to your satisfaction, your recourse is to consult with a labor attorney and/or a representative with your local department of labor.