well i dont think its their responsibility to give it to you. I believe its your responsibility to use it.
At my last job i used the week of vacation time i had as part of my two weeks i guess you could say. then came in and turned in my one week notice because i knew i was going to get another week off paid b/c of conflict of interest pay (moving from one bank to a competing bank). they walked me up to personell (HR) and i signed the papers.