Had the same call. I called the 888-279-2426
number provided on the recording. I tried to call the number and they asked what was the number they called. The lady ask me if there is a XXXX XXXX at this number. I simply told her, no and she state the number will be removed from the system with in 1-2 days.
I did go on and ask her what this is about, she said this is for XXXX who had an account w/ Citi and this is the number listed.
I would suggest those who had received the same call, just call the number and had them removed your number if it wasn't for you, otherwise they will just keep calling.
*** but if they ask you for anything else, don't give it to them.