Please don’t go digging up all the old threads about this since you’ve got your own here. Especially since the thread is over two months old. That’s necro-ing a thread (anything older than 2 weeks).
Firstly, there are no GMs on this forum. It is a player-to-player forum with our SFAs (the only Blue you will see posting here) to offer advice and insight, and to keep us hoodlums in line. Or at least that was Customer Support, but I see you’ve been moved over to Bug Report while I’m prattling on.
Blizzard themselves are pretty cut and dry about being hands-off in regards to Twitch drops. As explained in an older thread (around the time of the Feldrake, I believe), once Twitch sends data over to Blizzard, it flags your account with a particular license. Only when Blizzard receives that data can the drop be pushed through on their side. I know some people had Twitch resend that data and it clicked. Other people couldn’t get Twitch to comply with that.
The only thing you could do is submit a ticket, but I don’t think you’ll get too far since again, Blizzard is hands-off with the drops. It is the only way to put you in contact with a GM.
https://us.battle.net/support/en/help/contact/464/ticket
The only thing I can think of is to maybe tweet @WarcraftDevs? BlizzCS is the same staff who man the Customer Support forum, so you won’t get any answer there that you wouldn’t get here.
Regardless, I do wish you luck.