Sounds like something is not adding up with all this. Sounds like some missed communication or poorly trained accocites. I do know they advertise that you can get unlimited refills in your soveriner cup for $5, but don't think they advertise the 20 oz cups, and the last time they offered this it was 9.99 per person, so why would they sell an unlimited refills for only 5 dollars in 20 oz cup, when one Large pop cost 4.25 with tax. Something doesn't make sense.