Well damn. That's a lot of money that you have on there and it sure hurts to not be able to withdraw them.

This guy seems to be having the same problem as you, withdrawal not being processed though he has enough balance to withdraw, and support isn't giving any type of response to resolve the issue.

It might not be a scam yet, but it's having difficulty. Even if it turned out just to be a short term shortage in support, i would not use them again.