I've gotten the bonus quite a few times since I was first aware of the program back in July. It works - you just have to get IN the program within the month (before that month is over) then it is easier after that.
It is NOT an automatic deal and they do NOT go back and retroactively award the bonus from past months just because you "didn't" know about it.
Honestly - it has been touted on this forum several times since last June -so if you didn't know about it - then you just need to put Pirate Justice, IamNasty, Fruitfly, Boom, and a couple others on "Ignore" so you can sort through all of the relevant posts & skip over all of the complete non-sence that clutters this forum - LoL