It is happening: from 4th April 2023, American Express is excluding rewards for Grab top-ups for Amex True Cash Back and Amex HighFlyer, two cards that previously had very few exclusions and were commonly used for the purpose of Grab top-ups. Amex HighFlyer itself is adding more exclusions on top of just Grab top-ups. Unlike UOB Absolute which reduced cashback to 0.3%, there is totally no more cashback or points from these two cards when used for Grab top ups. This leaves UOB Absolute as the sole card known to give rewards on Grab top-ups, although at 0.3% cashback it really makes us wonder if “better than nothing” holds true....