I have received numerous calls from XXXX by a man who calls himself XXXX XXXX " director of premium receivables '' trying to collect a debt which I 've never had. This party claims to be calling from a law firm and threatens to sue me if I do n't pay a fictitious amount of funds. He knows my full name, address, last XXXX digits of my social security number. I am one hundred percent certain it 's a fraud. I feel extremely intimidated by this gentlemen for oblivious reasons.