If you signed a new employment contract upon acquisition, then technically you agreed to the new terms – and have forfeited rights to your unpaid vacation days.
The best you can do is go to HR and ask them.
Originally Posted: https://www.quora.com/How-do-I-get-the-employer-to-pay-for-unused-vacation-time-when-quitting
Originally Posted On: 2016-06-15