On a U S Airway trip from Mexico last November, I signed up for their frequent flyer program. Subsequently they sent me credit cards. I decided not to use those cards and so never "authorized" them. After receiving a billing for the annual membership fee, I wrote them telling them I wanted to cancel the account. I am now out of the country for an extended period and the person in charge of my mail tells me that I have a current billing from them for the membership fee. Of course I would assume that if it isn't paid, they will... read full review »