...But I think maybe the money is linked to terrorism or money laundering...
Well, now you've said outright nonsense. And what are your conclusions based on? You can't even imagine how far my wife is from terrorism and money laundering. The money on the OKX exchange was transferred from the Binance exchange and was used exclusively for trading and was never withdrawn from the exchange.
I do not mean that your wife is a terrorist or a money launderer. You should try and understand me. There are ways those coins can get into the good peoples hands also. That is the reason I concluded it with 'if I am clean and not violate anything, I will continue to disturb the exchange. I will prefer the live chat'.
And now you have a better explanation that the money is from Binance
. Then, then best to continue to contact their support
iswas my suggestion.