Department of Legal Affairs AKA USB - United States Criminal Bureau Rude, Threatening Internet CA

They called my office first. Also left a message on my cell that threatened me saying that if I didn't call them back all he could say was good luck. I called the phone number 415-295-5685 and spoke to Kenneth Webster who told me that I had a payday loan through Cash Advance Now that I did not pay. I told him I had never heard for Cash Advance Now and had never had a loan there. He told me there was a warrent for my arrest and they would come and arrest me at work. He also told me I would have to serve 3 months in jail for check fraud. I called Cash Adavance Now and asked them if I had ever had a loan with them - they told me no. The very next day I recevied another call (214-446-1861) from an Officer John Wilson with USCB - United States Criminal Bureau gave me a case number and transferred me to a Sargent James West who told me that I stole money from Money Cash Advance and now with fees owed $749. He told me that if I didn't pay right now they were going to come and arrest me. I know this is a scam but it sure is upsetting to get these calls. I spent my lunch hour at the police department making sure I didn't have any warrents for my arrest.