Since I am going to Canada for holiday, and my friend told me that I can buy rs prepay cards there for membership. But since I am Asia, and I can't see the runescape prepay card option on the rs subscription page (unless I choose my country to others like USA, UK, etc), I would like to know, is it possible to purchase cards in Canada and then switch my 'country' to others so that I can use it when I am back? thanks