I see no way to multiply 2.1 with 230 and get 1256740.
Even more, you can easily check your address on any block explorer and see if there are any incoming transactions, even if not confirmed.
And, at the end, you can filter transactions with this tool. The more details you'll add you'll sooner or later end up with no transactions meeting the criteria.

You still hope you'll get 12 BTC and it's not a scam, heh?