Hi Pilotjimmy347
If you got a call as a reserve, then I am sure you would be quite competitive in the list they have. If you could not get time off work, then that is something outside of your control, they would not ping you for that (at least I would hope). keep your phone on you, coz if I was a betting man, they will be giving you a call to fill one of the October DEO courses (maybe warn out work because there are only 3 DEO courses for the rest of the year).
The schedule can be found here:
Pilot Selection Agency Flight Screening Program Schedule - Royal Australian Air Force
All the best mate, hope you get that call!!!!!
FFFH