I have what is I think a basic question about RTW fares and purchase location. What I understand is that for some fares, the fare is only applicable if the ticket is purchase in the country where the journey begins. Where this is the case and the purchaser is not actually in the country how is this normally done? Is it sufficient to contact a travel agent in the departure country and buy the ticket from them and have them mailed or does a person actually have to travel to the departure country to get the tickets? And does it matter what credit card is used? For example does using a credit card issued in the US automatically trigger the higher fare priced for the US market?