Yes. Same thing on multiple poker sites.
Poker sites are rigged. All of them. That's because they use your deposit money for investments and are heavily leveraged. So their MO is to churn customer accounts - shuffling money from players who raise a flag with a withdrawl or a large percentage increase in their bankroll, to the typical hacks shipping it with bottom pair. You'll never be able to run your bankroll up to the level you cashed out at again. That's is now registered as your cashout level and the software will never let you get near it.
Most recently, I used the free $10 from the PokerStrategy promotion to start a bet365 account. I took that to $340 in a week. Then I sent them an email asking why my balance didn't appear in the withdrawable screen on their account screen. They fixed it, then I lost every hand for 4 days straight. That's a consistent pattern for multiple sites.
There's a segment of the poker community that doesn't want to believe it, but the image of major poker sites being paragons of virtue has already evaporated when Full Tilt went tits up and revealed it didn't have enough cash to reimburse depositors.
@ Coach: Human minds are silly. They often don't see what they don't want to see.