I have the same issue, 3 days passed, and my 10 pack are still not transferred to the game.
I’ve followed all troubleshooting activities from Blizzard Article - ID: 330683 - Didn’t Receive Hearthstone Twitch Drops
Accounts have been re-linked 3 times already in different browsers.
In addition, I’ve created a support ticket, but agents were just providing the same steps as in the article above. Finally, my ticket was closed, and I was told to report the issue on the forum.