I registered with these guys and deposited $1000. I received a $100 bonus and placed a few bets ($250 online limit by the way). Anyway, I got lucky and have doubled my money but not reached their wagering requirement. I needed the money out so emailed them because I wanted to withdraw my deposit+winnings and obviously knew they would take the bonus back. So my email was to ask them if the bonus (and maybe fees) would be the only money to be deducted and none of my winnings would be affected by withdrawing before WR was reached.
I've sent several emails to them over the last couple of days about the possibitity of withdrawing but with no replies.
They were sure quick enough to answer when I was putting money in.