I never received the last 4 twitch drops, including the feldrake, etc. Don’t even bother putting in a ticket in game, it will get answered but they’ll tell you to post on forums… it’s ridiculous. lol Here was the last response, telling me basically I did everything right, didn’t receive the stuff, but oh well… we can’t do anything:
"Greetings!
This is Game Master Drioddeaso
Thank you for contacting Blizzard Entertainment, We appreciate your patience.
While looking into your request, I saw that your account has been established many years ago! What a pleasure to be in contact with a loyal adventurer like yourself!
Without further ado, what I could gather by reading what you wrote us, is that you didn’t receive your twitch drops after correctly linking your accounts.
Rest assured that I have completely understood your issue and I will be working on a resolution that meets your expectations.
First of all, let me start by clarifying that we completely understand the frustration this may be causing you, but the Blizzard universe has no place for any toxicity or flaming behaviors. So we would appreciate it if we kept it in a friendly way 
(I never flamed them or was toxic btw… Just told them to fix the problem because it was ridiculous that so many were having issues with it)
That being said, I went ahead and checked your account and found that your twitch account is indeed connected to your Battle.Net account, afterwards I went to confirm that you didn’t receive the mount and found that it was indeed not added to your account. Blizzard Customer Support can’t help with missing twitch drops, so for that, we advise you to submit a bug on the forums as submissions posted there have the benefit of allowing a community discussion around high-impact bugs, which can occasionally help in prioritizing them. If you want to check on a bug, we also keep a list of known active issues at the top of that forum that all players can see.
Thank you again for reaching out. Have a great one.
Sincerely,
Game Master Drioddeaso"
So yeah… nothing done, no feldrake, pets, etc… and no help from Blizzard (typical). Good luck to you guys! I know I won’t be watching streams with drops anymore. Not worth my time.