American Express Singapore Airlines Mobile Wallet Offer Stacking with 'Daily Essentials' - up to 7.3 Miles per Dollar!
American Express has unveiled a list of participating merchants where holders of the American Express Singapore Airlines Credit Cards can earn additional miles every month. You might remember that there was an offer that was release a number of weeks back that allows eligible cardholders to earn 4 bonus KrisFlyer miles per S$1 spent with mobile wallets - I visited Watsons the other day to find out if both of these promotions stack.
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