Unlike many cards which have since ceased to offer rewards on Grab top ups, the Amex True Cashback holds the unique distinction of giving cashback when you top up your Grab wallet. If you don’t already have an American Express card, there are two really good reasons why you would want to get the Amex True Cashback Card now. Firstly, you get a really great sign up offer which lasts until 2nd November. Secondly, it is the only card that still gives rewards on Grab top-ups. Even if you have other American Express cards, you still get $40 of vouchers for adding the True Cashback to your collection, and still enjoy the attractive 3% cashback rate. Note that you are still counted as a new Amex customer even if you have cobranded Amex bank cards (e.g. DBS Altitude Amex, UOB PRVIMiles Amex etc). Grab top-ups When you top up your Grab wallet, you get 3% cashback on up to $5,000 during the first 6 months....