Reconsiderit, you ought to reply to the thread, even if there is no news. We are getting restless, and that's because you gave us another timeline, and we're not sure if we are still on it or not.
As respectfully as humanly possible, there needs to be more communication here. You need to tell us what's going on. You've said how hard this is on you, but we've given you our money (and for me, at least, it was an amount that I can't just write off), and we do have some right to be in the know on how things are going.
I know this must be a tough spot, and evidently doing this GB was harder than you anticipated. Not only is the GB remarkably late, you've given us multiple timelines, you've gone silent on us multiple times, and the latest is that some of the cases failed QC.
We would all be much less anxious if you communicated with us, though, and I think we do deserve to know what's going on.