Ordered 3-stage water filter replacement cartridges using their E-Bay site. Said delivery was scheduled 25 Feb to 1 March. Now 3rd March and nothing. Check tracking and order not sent yet. Tried to phone them, number listed is 'out of service'. Tried to go onto their website, which I had tried previously, and either a blank screen or a '404' error coming up. So no way to contact them. Have asked for a refund via E Bay, and ordered from another provider. Looking at other peoples reviews, it seems that customer service is non-existent. USELESS!