I ordered Cavalia Tampa tickets online in US$ using my US credit card. I had to call to change which show I wanted on their toll free number. They processed a credit and a new purchase. Three transactions each charged a $6.54 fee by Visa because without my knowing, the US$ transactions for a show in the US were processed by a Canadian bank. I got nailed $20 by Visa within three minutes on effectively the same purchase and I had no disclosure and no choice. It seems this can happen anytime you use your Visa without you knowing until you get your statement. It is time we all boycotted credit cards for their sneaky mercenary practices. Jim Graddon, Davenport, FL