866-470-5331

9-28-09- Had a message on my work #. They claimed that there had been unusal use on my Global MasterCard. Please call ASAP. I don't have a Mastercard.

The number they said to call was 866-470-5331 X1936

866-470-5331 is the Mastercard Fraud Department
If you try to use the card outside the country the transaction may be denied, and then you need to call them to verify that the use is not fraudulent. You can also call the regular customer service number on the back of the card 800-423-4343
Or if you are having trouble getting a transaction approved abroad, you can call them collect at the number on the card 904-448-8661
Also, if you look at your account online, there should be an alert message on it asking you to call

18664705331 is a Citibank Master Card phone number. But to make sure, you can call to te 1800 in the back of your card.

i received a phone call for this number saying that there is a fraud with one of my cards, but I think is fraud and they stole my ss

Thought a scam as didn't have a MasterCard as voicemail stated to call about. Found out this was indeed Citibank & someone had gotten my personal info and opened a credit card in my name. They tried using it in FL for cash which was a red flag. Citi's ID Theft Solution Dept. is going to help me.

I received a voice mail telling me to call 866-470-5331 about a Fraud alert from Citicards.  I dont have a Citicard and I do not know what Citicards is.  When I called, the answering system asked me to input my card #.  I input 1234, etc. This was an offshore number and the first thing the person asked me for was my number.  I asked her who she worked for and she said Citicard.  I am pretty sure this is a scam.

They left a message and said to call them about a card opened in my name.  So I called and got a recorded message asking for me to enter the last 4 digits of my card.  So I waited for a while and then the recording asked for my 9 digit social security number.  I waited some more and then some person answered and asked for my 16 digit credit card number.  The guy tried to sound professional but CITI would be able to confirm most of my identity from where I was calling from.  Good bye.

This number is CITI fraud related customer service. Just want to purchase something online which maybe located out of US. After submitting order, card declined by CITI and couldn't log in online banking. I called this number and verify with text code then they cleared the transactions right away.