Party Poker Account Frozen

I am a new online poker player and recently opened a partypoker account. I won a couple hundred bucks and wanted to pull out some to neteller. As soon as I did that my account was frozen. I called up the number and they said my computer was being used by like 15 different people. I know thats basically impossible, I am the only one that uses my computer to play. Has anyone ever run into this problem before?

Also, they want me to fax my driver's license to them for verification. I am always reluctant to give away personal information, is pay-pro legit?