I'm also on the same situation. I sent them email through support@itch.io but no answers at all.
Sent about 3 email's. I have a payout in review for 40 days.
Tagged them in twitter but no answer.
Trying to contact them since before February 15. :(
Viewing post in Hasn't withdrawn money for 30 days.
Stilo not.
They answered me after 40 days. They said that the problem was due to something wrong on my tax forms.
But 30 days ago, they had sent me an email to fill my tax form again, and I did it. And I keep asking later if everything was ok, and they didn't answer me back...
Well now they answer, for me to fill my tax forms again. I did, and I'm waiting about 4 days to get any answer from them. Until now, nothing.
My payout is being review for a total of 50 days now :(