Really sad, I am on the same boat, partially because of my mistake, I redeemed the Twitch Rewards before finishing the tutorial, I believe this bugged somehow. Support is non-existent, open a ticket more then 24h and yet no response. I already tried all the drill unlinking on Twitch and relinking does not help, all rewards are marked already as delivered, there is no way to unlink your Steam from Twitch once you linked at the Party Animals website. Anyways, for me, the worse is no customer support/service at all.