I have attempted to reach out via support@stockpile.com and their in-app chat, but have received no response for several days. It appears to be a total operational breakdown - the UI requires a linked bank for withdrawals, but the UI for editing that bank account is non-existent.
I have filed complaints with FINRA and the SEC (CRD# 156170), but I'm obviously not holding my breath for any real recourse. I just wanted to warn the community that if you have funds here, you might find yourself in a similar technical hostage situation with zero human support to override it.