Answered the call, "Hello, this is a call regarding your current credit card service. There is nothing wrong with your credit at this time but we would like to offer this very limited time chance to get into a lower interest rate. Please press one to accept this offer and speak to a live operator."
They called me. Didn't recognize the number. I let it go to voicemail. They did leave a voicemail, but it was 22 seconds of silence. This number is now blocked. Jerks.