Did you get the phishing e-mail a little while ago? Because they sent an e-mail and you had to send a quick e-mail off to say you knew what you were doing.
Oh I see, yeah I didn't click anything like that. Due to the wave of phishing attacks I tend to delete/ignore emails from Bitstamp and instead sign in to the website directly.
Support replied said they would re-enable if I confirmed I hadn't clicked on the phishing emails.... Which you know seemed a little odd, given an attacker could write "Oh hey all good" in the support ticket.
Hopefully this is just a temporary speedbump.