answered their call; it was a recording with a warning to VISA and Mastercard holders. I then hung up. I am on the do not call list. Further these recorded messages are illegal.
It's a scam. Shows 613-216-2172 "Ontario" on caller ID. They are tryomng to get your credit card information. File an online complaint with the FTC here:
http://esupport.fcc.gov/complaints.htm