Rumson Bolling and Associates (Debt Collection Agency) falsely claim that I owe F and S Diesel Repair Co. an amount of $1334. I have no knowledge of this company. I never had any transactions nor authorized anybody to make any transactions with them. The Agency (Rumson Bolling) continuously calls me even at work that I did not authorize them to. They harassed me by telling my sister that I will go to jail if I do not pay the amount that I owe. I disputed their collection notice by sending them a fax letter but they did not respond. When I talked to their supervisor after talking to Samantha and Joe, I asked him to mail me an invoice or any proof of the debt they claim is mine, he replied that "I am not your secretary." Then he transferred me to the manager who refused to provide his name. When I asked him to mail me a proof of invoice or any detail, he told me to "shut up" then he hang up the phone. They also do not tell me how they got my social security number and the rest of my personal information. I need some help regarding this matter. Thank you.