Titan Bitcoin. After "peeling" a sticker from one of their coins to redeem 1 btc, I was surprised to find only a 2FA code, not a private key. Tim Fillmore, president of Titan Bitcoin, informed me that this coin had been "already redeemed". The Titan Bitcoin "coin verification" site, however, shows the coin as "not yet funded", here:
https://www.titanbtc.com/verify/vFZKfWyJ/This indicates that Titan Bitcoin has multiple databases tracking the states of their "2FA" coins, which are externally physically
identical to their coins that actually hold private keys, and that there is corruption in their database. Tim Fillmore is telling me one thing while the coin verify site tells me a different story, and I'm out 1 btc. I have been scammed, and Tim Fillmore is implicated. That's all I can say here, as I have contacted the police and the FTC and they have started an investigation.
Also, a note for Tim: When picking someone to scam, choose somone who is not the compliance officer at a currency exchange. I am legally obligated to report you as a fraud suspect to certain government organizations now.