Upon answering a voice automated message stated that they were calling on behalf of important issues with my credit card. When connected to an operator, a foreign (India) representative answered and asked for my credit card number. I told them I did not have a credit card from that source and he asked again anyway. I responded with "tell me why you are you calling me and asking for my credit card if you are not my bank?" Then I was hung up on. When I tried calling back to investigate, the number is not valid. Sounds like identity theft to me. Report them to the FTC like I did: https://complaints.donotcall.gov/complaint/complaintcheck.aspx
Called my cell phone, don't answer calls w/o ID. I verify numbers on this excellent site before returning call for this very reason. Looks like caller has been busy today.