This is a number used by a dodgy "binary option" scam that goes under various names including My First Online Payday, or they may pretend to be a broker affiliated with such a place. Ignore, hang up, block, run away. They prey on gullible and desperate people. Who knows what other fake businesses these same people use.

I called back number (02) 9098 4754 rang 2 times then goes to busy tone.