I got the same exact response from them. They said I needed an additional .6 btc to reach the "3 hour window" limit, so I stupidly paid them another .6. Now they're telling me I'm stuck in "waiting" and the only way I can get out is double what I already have in their accounts (Which is another 1.1 btc). Do they really expect me to send them twice as much btc just to fix an issue they created themselves?

These guys are either scammers or just complete morons. Either way, It looks like we're screwed.