Hi guys, currently holding Citibank gold shell card and I got call from Citibank officer which offering Citibank Platinum Cash Back Card and they mention as following:

(1) Citi Gold Shell Card - 2.5% rebate on shell, 1.5% rebate on other
(2) Citi Plat Cash Back Card - 5% rebate on petrol (Limit up to RM600/mth), 2% on grocery, pharma, phone bill, 0.5% on others.

I used to swipe this card on petrol purpose but my usage per month is about RM800++ average. Can't fully utilize the benefit of having Citi Plat Cash Back Card. Any card better than those?