Second hand stock on shelves!?!

Just purchased a humidifier from dischem Farrarmere Square, just to find when I got home and opened it that its a second hand/used humidifier! Took it back to exchange but the manager could not care less for the inconvience caused to me the client, or that he got second hand stock and selling it as a new humidifier. Absolutely disguisted with the way we are treated!