Here is the bitcoin address that contains the Bitcoins:
1MDq7zyLw6oKichbFiDDZ3aaK59byc6CT8
99.9%, this is a lame scam attempt. 0.1%, the coins are somehow stolen, or otherwise associated with very bad things so that anyone who has them will be wishing they were scammed.
Stay away from this guy....
Pff ... I see that the very idea that someone can buy btc under a non-cash payment contract, and even coins will be transferred AFTER full payment, does not give you peace of mind. Apparently you sell BTC for cash and with escrow))?
Your item #1 is a lie. I have never asked anyone to send me coins in advance. I need only PoC. After the PoC, we will start a further discussion about buying coins. So you're lying.
None of this matters because you do not have control of or own these coins. If you do then prove it by signing a message with the private key you "hacked" in order to own/control these coins. Until you do that nothing else matters and this thread and all your other threads can be closed as scams.