If you were told you are moving and would rather a package, send an email to your manager and copy the ALAEA in so we know about it. The company can't forcibly make people leave if others are prepared to go no matter how late the application is in. The only exception would be if your licences were completely mismatched with the person who's job you were saving. eg B1 and B2.
The company have a right to change your section though. I was moved against my wishes from SIT in 92 to heavy.