Edit: OP, what were you trying to buy from this jackass? In your post you said "GPU instance" and I don't know what that is. I'm just curious--it doesn't affect the fact that I'm about to neg the guy for scamming you.
GPU instance is just a cloud server with GPU, I need it to Deep Learning, AI calculation
I got a topic for that if you interesting
https://bitcointalk.org/index.php?topic=5360045