Not sure what you mean by "bought it up". As far as I know, they haven't bought up lines since they inacted 4a2bcyabadabadoo. Do you mean they paid you for the 42 hours of vacation time?
What I mean by bought up, is they post the FCIF each month with the VTO target lines. My vacation was 42hrs. The trip I requested was 16.2, so instead of giving me one R day or another trip, I was bought up. For the month of April, also got a vto, and also got a buy up. FWIW.