The OP is insane to call a book a scam after 2 days for $500,000. They have to make sure that the correct person is being bad and that everything was fair. If it's $5,000 then it shouldn't take more than a few hours. $500,000 is different.
I dont find it insane, allthough I have to say after watching the wallet it looks kinda like its his "last" money from that wallet atleast.
That is something I find insane. Playing with that kind of money when there is no backup.
That also concludes the idea of having stress after waiting for 2 days.
Regardless of having a backup or not, We are talking about half a mil here floating while the investigation is ongoing. We don’t encounter this kind huge amount involved on daily basis.
What I think odd on this case was activity of the OP balance history pattern. He keeps depositing that kind of all-in amount then withdraw once he got a small profit.