Mambafx Forex (is he running a scam??) Is Mambafx running a scam? The answer is, yes! Let me explain. He (mambafx) runs a trading signals group on telegram. However, he advertises trading on behalf of investors, and that they should contact admin if interested. Investments range from $300 / $20k (you get back $4200) and you pay a comissi... 1294 Jun 14 at 15:07