I have been contacted XXXX by Portfolio Recovery in within one month in XX/XX/XXXX concerning a debt they allege I owe to XXXX XXXX. Since I am a current XXXX XXXX Card hold I requested the address so that I may write Portfolio Recovery to request the verification of debt in writing. 
The XXXX person who called me gave me an address. I asked her how I should reference the account so that I would receive the correct information. She told me to reference XXXX XXXX in the letter. I mailed the letter, certified return receipt and was not provided a response. 
Another associate contacted me at XXXX on XX/XX/XXXX stating that she was attempting to collect a debt on behalf of XXXX XXXX. I explained to her that the previous associate was not very helpful and that I still had not received a verification of debt. She stated that a letter was sent to me in XX/XX/XXXX. I asked if it was sent to XXXX XXXX, NV, where I currently live. She stated yes. I explained I had not received the notice and I was questioning the validity of the debt. She argued that I did receive it. I asked repeatedly for her to resend the letter, and mail it requiring a signature so that there would be no misunderstanding about whether or not I received the letter. 
The young lady raised her voice and attempted to steer the conversation back to how I planned to pay the debt off. I was not going to discuss an account that I was unsure I owed, and I also needed to verify the statute of limitations of the collection, but explained to her that I would not do so telephonically, but with a written letter from Portfolio Recovery. The associate never gave me opportunity, reference number, or address where I could address my concerns, but continued to raise her voice. I terminated the call because I did not feel that it was productive and we were talking in circles.