I'd just be patient for now. I've found them to be very reliable guys, but you probably did put them in a tough situation by mentioning the silk road transfer. Now they are aware that it is almost certainly for illegal purposes, and as a company trying to legitimise bitcoin, you've put them in a bind.
Give them time, I'm sure they will respond soon enough.
If they've assumed it's illegal for everyone just because it's illegal in some places, they are untrustworthy idiots.
If they froze your account because you transferred to Silk Road, please let us know.