Originally Posted by
zyxlsy
I am gonna do a comparison, I will use my CSP, Chase United Club, IHG MC, AMEX Plat, and Discover It, to each purchase one item at a Starbucks, which doesn't have DCC for all cards. Then let's see which card has the lowest rate.
I understand they use different rates. But I am curious to know whether it's possible that, at one time, say, Visa rate is better than MC rate, and several days later, Visa rate fluctuates to a position worse than MC rate?
I did that already - bought a box of brownies one box at a time from the same cashier in Seoul:
http://www.hongkongcard.com/forum/fo...hp?id=3939&p=7 #59
I bought three boxes of brownies with three cards.
Transaction date: 28 Oct
Merchant: Lotte Supermarket, Seoul
Amount: KRW2,500
Bankcomm Diamond Unionpay
Post date: 29 Oct
HKAB rate: 0.007330
Bankcomm rate: 0.007128
Discount: 2.76%
SCB AE
Post date: 30 Oct
SCB rate: 0.007208
HKAB rate: 0.007320
Discount: 1.53%
Shacom PLK MC
Post date: 30 Oct
HKAB rate: 0.007320
Shacom rate: 0.007192
Discount: 1.75%
I was criticized for not including Visa. So, next trip, one weekend in Bangkok (not same cashier tho):
http://www.hongkongcard.com/forum/fo...hp?id=3939&p=7 #61
Amex Gold Charge
Post date: 19 Nov
HKAB sell rate: 0.2556
Amex rate: 0.2579
Premium: 0.90%
Shacom PLK MC
Post date: 19 Nov
HKAB sell rate: 0.2556
Shacom rate: 0.2591
Premium: 1.36%
Bankcomm Plat Visa
Post date: 19 Nov
HKAB sell rate: 0.2556
Bankcomm rate: 0.2575
Premium: 0.74%
Bankcomm Diamond Unionpay
Post date: 19 Nov
HKAB sell rate: 0.2556
Bankcomm rate: 0.2542
Discount: 0.55%