When are credit boosters coming back? You want me to play this game and spend...

KRZYBooP: Sadly, I do not know when or if credit boosters are coming back for sale in the in-game store.  I do know that I and other CC's hand them out for prizes during our own contests.  I run a contest where players submit their tank related crafts and the community votes on it.  More information on this can be found HERE.