They called and said they were from "cardholder services" and I should press 1 to speak with a rep. When I did that and asked the rep what company he was with, he hung up on me. A legitimate firm would cheerfully ID themselves.
I called the number back and it was disconnected, My caller ID said it was from Darien, CT.
IF the greedy, selfish bureaucrats at do-not-call-dot-gov can't fix this, they should ALL be fired ASAP.