I read that thread, and I'm wondering if there was any sort of resolution for the OP. My guess is no, but that thread just died off very quickly, and there's been no followup since then.
I did find this odd:
People they closed my account! I'm going to talk with lawyer and report them UK Police!
Tokens.net highly values the privacy of our clients. Under rare and special circumstances where we have reasonable grounds to believe that a client is involved in unlawful activity, we may freeze transactions until the investigation is complete. In such cases we can only share limited information with clients under investigation.
I'm not sure what kind of illegal activity tokens.net thought he was involved with, but the guy did apparently give them all the info they asked for, and it looks like they just stole his funds using that clause as an excuse. I don't think it's legal for an exchange to just seize a customer's funds and not give them a chance to appeal.
As far as this thread goes, my suggestion would be to just stay very far away from tokens.net, because they don't seem like an honest exchange--if they're even still functioning.