If it was really OP's fault, I see no reason why you should keep giving him money. That could easily be abused by people claiming issues and getting double their money (what they sent, which was "hacked", and the amount you gave to them). This may or may not be the case with OP, though (we can’t really know).

Just to be clear, I didn't just take OP's word for it and assumed you guys were a scam. I saw you didn't answer him properly (at least in public) for some time and was going to potentially use a negative trust as a warning + a way to force you to answer him if you didn't do it until them.