Got a call from this number but nobody spoke, googled it, and found this page. Interesting, because I tried to use my Citi card last night and was declined. Didn't think too much of it until receiving this call. So I went to my account online, and saw a red flag on summary page, and gave an 800 number to call. Called THAT number and asked about the 904 number, and the rep said that that was indeed the Fraud Center. Turned out that my account was flagged automatically by the system for a $4 coffee charge! Took less than two minutes to set everything right.
Citibank has called and left a message with my wife asking to call them. I dialed the number on the back of my card and they confirmed that they made this call. There was some problem with my last payment and that's why they called. It's a legitimate call.
It appears legit - I was contacted from this number about possible unauthorized charges on my card. Doing the same as the previous commenter, I called the number on the card and they verified the information.
My parents received a phone call from 1-904-954-1091 (the message was left on their answering machine) at my old address asking that I call 1-866-517-5347 in regards to possible fraudulent activity on my CitiBank Platinum Select credit card. I thought that the number was suspicious, because CitiBank uses 1-800 numbers only as far as I knew.
I used the Google search engine to type in "1-866-517-5347" and found this form. I decided to call the number so I could report them. Upon dialing the number, a man picked up on the first ring and said "This is **** (unable to hear the name) with CitiBank, what is your account number?" There was no recording that said the call may be monitored for quality assurance or anything.
I also relayed this story to the CitiBank company, which they had given me a number to call the day prior. I verified with them that my account balance was $0 and that there had been no such fraudulent activity on my card.
The message I got was that this is "CitiBusiness Fraud Early Warning" calling to confirm recent frequent activity on my CitiBusiness MasterCard. They provided an 800 number for me to call back: 800-750-7453.
This could be legit, but still. NEVER call back a number left as a message. I'm surprised they left a call back number. I will call the MasterCard number printed on my card instead. Never volunteer secret information to anyone who calls you. They should be able to tell YOU.