Originally Posted by
Awesom Andy
Generally, you'll find the extra miles earned is not enough to offset the fx fees charged.
Depends
With DBS Treasures Black Amex, for every $$100 spend, you get an additional 120 Krisflyer miles if the spend is overseas.
If they charge you 2% extra for overseas transactions, you pay S$2 in Fx charges for these 120 additional Krisflyer miles
Effectively you are buying Krisflyer miles at 1.67 Singapore cents or 1.37 US cents per miles, which is not a bad deal