Who called from 2192490540

Got a call from this number on my mobile said indiana usa any one who it is

i been receiving calls from this unknown number

Five calls in eight minutes, answer and no one's there, meanwhile another call from same number is on call waiting

Five calls eight minutes, when I answer no one's there, another call same number on call waiting, just called again trying to give us $14,500 hung up on me when I told them for the seventh time to remove us from call list