Complaint Review: Cash Advance USA

I was just recently contacted by a supposed law firm stating I had not re-paid a loan I took out the Cash Advance USA.  I did not take the offer as their fees were out of reach.  They were very threatening and rude to me and did not answer one of my question and request that they prove to me I owed the debt such as my approval of loan, a chased check fronrt and back (copy). The implied I was going to be served and to get a letter and only then would Ifind out anything about this so called loan.  I planned to file with my State Attorney General to put a stop from this company from working in our state  commiting this fraud here.  I have offered to send tham a copy of my checking account showing no such deposit into my account and even a letter from my bank showing there was no such deposit from them into my account.  I had tried to call them back to get a phone number to Cash Advance USA but they do not answer my calls I think they have phone recognition so they don't answer.  They have people who can hardly speak English and I have to ask them to repeat what they say.  This company should be closed down now.  I worked in the mortgage busines for many years and if one of did this to a borrower we would shut down in a heart beat.  Loan companies fall under this same ruling as mortgage loans