Citi Bank has changed my mobile number in my credit card without of notifying me to do fishing scam. Talked to the Citi bank customer care#01242542484, 01242564653 and their customer relationship manager name: Shanti even she doesn't give any response for this matter.

I have not requested to change my mobile number.
Citi bank and their associated staffs are tried to make deception with me for unexpected loss of INR60, 000 from my credit card 43********373824
If Citi Bank is changing the customer mobile number without of intimating the customer it seems it doesn’t have any security for that because of registered mobile number is the strong security of the financing activities. Everyone who so ever wants Citi bank staffs wants to do fraud they can do easily and they did fishing scam.