Great Ninja War Packs are only available for several days .. From the day Great Ninja War ended (Saturday) to the start of the next week Great Ninja War (Wednesday; 19:30ServerTime) .. After the that, all packs that is not claimed or distributed will be deleted and gone ..

I experienced it before when my Former Leader's account got locked for some reason, we didn't have Quartermaster that time and the packs were lost ..

No, because the Leader and Quartermaster are the only positions that can distribute packs .. For upgrading the rank, wheel and skills of the group, only Leaders and Seniors can do that, same with fixing the R&D machine of your group ..