Think people.

If it has been on and off, that is pretty much a guarantee they are not absconding with your coin. If they were, why not just shut it down? Why down, then up, etc. I was bit suspicious of them myself, but took the risk with 0.05 coin. I have withdrawn 0.1 back, and have 0.1 invested, so I've become more trusting of them.

Perhaps the plan is to steal coin at some point, but it makes no sense that would have anything to do with the current issue.