Seems like the drops are being given on 1st server that you played, so you need to accept item registration on that server and then claim the item on the server you want to play.
I am also having this issue where I am not getting any of the twitch drops. The account is connected properly,
Name: Kaildrakan
Server: Aldebaran
Thanks for your time. 
I am having the same issue. Got the mount but missing the other boxes.
Same problem
Name: Khalburgo
Server: Neria
Redeemed on Twitch but have not received the following in-game rewards
1 - LoLA Neugier Gold Mount
2 - LoLA Helgaia Pet Chest
I have the exact same problem
Oldest drop has been 10 days and most recent 2 days, havenāt gotten any of them yet. Have disconnected and reconnected everything with no luck too.
Some drops are only tied to like 2 specific channels like lostark offical not everyone with DROPS in his name count toward the paper hat for example read carefully at the drop where u can get it from
news for missing drops?
Going to repost same information here.
While this might not help everyone.
I found out that if you relink your acc again here : Twitch Drops | Lost Ark - Free to Play MMO Action RPG
It will re-enable your drops. (and send them to your ingame mail in 24 hrs)
Iām having the same issue, it shows that I have 3 of the rewards and would receive them within 24 hours, but its been almost 3 days and still nothing??
same , i didnāt get the pet and mount from twitch drops i tryed everythingā¦
Yep. I started a new thread, not realizing there were many already posted. And yes, experiencing the same issue. I have the Saphia pet and the Hover mount, but nothing else has posted and I canāt seem to earn any progress on my Drop Meter. Been on Twitch for days now.
Same problem. Anyone know how to resolve ?
Server: Kurzan
Char: rafinhakillua
Hi,
I understand that there are more important priorities right now ā¦ but it would be reassuring to see a reaction that the topic has not been forgotten or cleaned up āunder the tableā.
Except for the first drop, I too didnāt get any rewards in the game, even though everything is fine on the side of Twitch ā¦ and that first drop sadly disappeared without a pick-up the very next day.
So please inform us whether this topic will be addressed. Not only because of the already missing drops, but also because of other drops in the future.
Otherwise, I wish you a lot of success, stable servers and a lot of fun for both developers and enthusiastic players
See you in LA 
Update:
I tried (again) to disconnect and reconnect the accounts and this time it worked like a charm.
As @Mustang wrote few comments before me, try this link and pray
Same Problem here, got both T4+T3 Drops Days ago, relink didnt work for meā¦
I am also still missing my Tier 4 drop the mount 
contacted amazon twice about this and still nothing. Just told to waitā¦but for how long been over a week now.
With as many threads mentioning problems, maybe the āWaitā command is due to some future - go ahead and hand out those items - initiative?
I dunno. Iām gonna catch a weekend lineup of a Twitch streamer who has labeled his drops for the ones Iām currently missing to see if perhaps I was tuned into steams that werenāt giving away the drops I neededā¦?
The amethyst shards and the Helgaia pet are the 2 iām actually holding breath for, and if push comes to shove, Iād rather have those shards.
But alas, I wait as well.
watched Twitch today for 4 hours got the drop in my twitch inventory and pressed āclaimā still have not received it how long do these normally take?
iām also missing my LoLA starter, but got other 4 loots.
hope this problem will be fixed since amethys shard is hard to get
You wonāt be getting your drops. This is an email I have received from Amazon:
What you can do is to go through the steps on our website and make sure you followed everything Twitch Drops | Lost Ark - Free to Play MMO Action RPG
Make sure that you completed the drop requirements by watching the officially supported streamers for the required amount of time.
****************If you still have not received the drops, we will not be able to assist as we cannot add the items manually. **************************
The only other suggestion would be to unlink and link the Twitch and Steam accounts again and allow 24 hours for it to refresh.
I do apologise for the inconvenience caused
I hope this helps and that weāll see you again soon.
Weād appreciate your feedback. Please use the buttons below to vote about your experience today.