Of course: Global Payments, as you suspected. FX rate: Visa + 5.45%.
I'm trying to come up with an appropriate (esp for an ambassador) nickname for that company.
Global Ransom?
Global Extortion?
I had problems with that company outside Taiwan - Hong Kong and the Maldives...
5.45% must be a record. But if the choice is involuntary and they can get away with it why should 4.x% be the limit?