Dynamic Recovery Call from Huntsville AL Internet

Received a call from Dynamic Recovery with the numver 256-217-5029 stating to call them back at teh 1*866 number to discuss a debt.  Called the 217-5029 number back and said i had a pay day loan done on June 18, 2008 (weird 5 years to the day).  She asked me how I wanted to pay the pay day loan and I said I needed the name of the pay day loan company to call them directly and she said she didn't have the name.  

I then asked her to send me the proof i had this pay day loan with a copy of the driver's license, bank statement, signature, and pay check stub.  She said she didn't have it.  She did ask me for my credit card number and I told her when I get the information i requested and the name of the client i will pay and again she refused.  But the young lady had my credit report and repeated all my information on it.  

I told her I had no intention of paying any loan unless you can show proof it is mine and she said she was going to mark it reused to pay and alert teh client.  How can she have alerted a client when she didn't have the clients name to give me?  Also she wanted to know what credit card I was going to pay it and again i refused to give out any information to her.  It makes me nervous she had my credit report to read my information to me but couldn't give me the clients name and number.  Total Fraud and now I am scared of my credit and accessibility