Just received this phone phish. I suppose there are people who fall for this, but hopefully not many. I have heard that some of these are waiting for a "yes" confirmation, but I'm doubtful what just that could open you up to. Best advice is DO NOT RESPOND; HANG UP.
Obvious recording goes:
Hello?
This is Sarah Lawson, from the department of Visa and MasterCard. How are you doing today?
Hello?
Can you hear me?