Re: Why will my Weapon, Vehicle, Attachment or Specialist not unlock?

RM68 reached Mastery 14, but the MASTERY 12 attachment are still locked but I fulfilled the requirement for it, which is get 360 kills.

I contacted them via email but they said they couldn't fix it
I know if you got the bug before 360 Kill Mastery 12, there is a workaround, but
Attachment bug at 360 kills at the end is not user fixable

Professional resolution is required

sorry for bad english .