Partpoker account blocked

[muffins]

I signed up for a partypoker account a few weeks ago and played for a week with no probs. Then I tried to log in and found that my account had been blocked. After 4 days and several emails I got a reply from partypoker asking me to send a scan of my drivers license to alerts@PartyAccount.com and efax@pay-pro.com. Is this normal? I can't see why they would need it - pretty tempted to withdraw all my funds as soon as I get back on and not go back :/