I know the guy, he is due around 5 btc. Basically he sent coins to the wrong contact address. The receiver gave back some, but kept 5 btc.
I thought giving him merit would allow him to send PM, not the case though with newbie a/c.


If one gets credited a million dollars to his Bank account by error but doesn't completely refund it back, it is an offence. ( https://www.money.co.uk/guides/can-you-keep-money-accidentally-paid-into-your-bank-account.htm )

Is it similar case for Bitcoin transactions? I would think so..