If you selected Sprint to obtain TWA Avaitor Points, you better take a good look at your latest Sprint statement; Sprint in now including on their bill, a "FREQUENT FLYER EXCISE CHARGE." My $1.58 toll charges turned into a monthly bill of $13.57, which INCLUDES $5.03 FOR (ACCORDING TO SPRINT A MANDATORY) FREQUENT FLYER EXCISE CHARGE, in addition to all of the other mandatory taxes. I switched back to AT&T minus the FFB bonus points.