I was using 5 % citibank cards up until last year when they changed their policy to 1 or 2 %, can't remember the percentage. (allfinancialmatters.com)
Most credit cards from CitiBank do not have annual fees attached though some of the branded cards do carry fees of $ 50 - 75 per year. (think-creditcards.com)
Some student cards issued by CitiBank require close attention to detail on the part of the student. (think-creditcards.com)