OK, got off the phone with CITI..... the REAL one, not these fakes.

They did in fact confirm my suspicion that the people calling me are COMPLETE FRAUDS!

CITI CLIENT FIRST IS NOT AFFILIATED WITH CITIBANK, CITICARDS, CITI FINANCIAL or any other legitimate CITI institution.

If they call, tell them they can kiss your a**

I've gotten messages from this number with a request to call back.  I have tried to do so several times.  There is a message that "this call may be recorded," but nobody picks up - just background voices.