Received a call to our land line from this number a few minutes ago. We are in Missouri. Caller ID: Unavailable. I answered the call anyway. Immediately a recorded female voice came on the line stating she was from Card Holder Services and calling about reducing my credit card interest rate. At the end of the recording the voice told me to press 9 to be connected to reduce my credit card interest rate. I did nothing and said nothing and just held on. The recording repeated 2 more times before being disconnected. Big scam!