Hmm, my SA told me that it's really up to the store manager's discretion because they've had people try to take advantage of this in the past. She told me one example where a customer price-matched Revas online from Saks (in a size 5) and came back and tried to exchange them for a size 9 (her real size). Your case is different because something was wrong with the boots, but I guess it depends on the manager or SA?