OP, you can try to use a Mexican proxy and buy the game cheaper than the American or European versions, sometimes it can be as cheap as the equivalent of $35. It's almost risk free, I mean you pay Origin so you know you won't get scammed. Now whether you get your account banned or not is up to luck.
I bought BF4 like this, so far(over 3 months no problems). Plus, it's highly likely you get scammed again by some random newbie again.
Meanwhile, the seller is myrez, right? If so I left negative feedback and I suggest you do the same https://bitcointalk.org/index.php?action=trust;u=95769. But if I got the wrong account then do please tell me.
Already left the feedback, but thanks for the reply.
EDIT: Got the game with fiat. Such a sad day.