I'm writing this on behalf of a friend who has a Klingon Recruit that has the same kill count without any further credit for weeks. He showed me screenshots, and demonstrated hundreds of kills on both story and STF content which I also participated in, where the counter never went up and no credit toward higher tiers ever registered. He filed a bug report and was told to post here, but he insists the "NEW DISCUSSION" option isn't showing up as he logs in here, so I am posting it on his behalf.
Please chime in if you are also experiencing this bug. Visibility helps!