Something is 'fishy' here

Atm card given to friend for one week.
Vincent wana return $ no need atm card and password.
If really your bro got conned, then i really feel sorry for his stupidness.
I don't want to flame u, but now the name is from your bro.
I would say at least refund some $ (maybe 10-20%) to the two so that at least they know you and your bro are victims. No $ refunded, means more stories will happen.

Refunded but the $ not in the account yet? Mmm..