Unreliable: A very low quality manufacturer - Dune Ceramica is a Spanish tile brand that is also sold at Acul Acosta in Barcelona. We bought tiles from this seller. The supposed 'manufacturer' Dune Ceramica never responded to our Burofax or our emails (I attach the image of the email received from Dune Ceramica). What else can be said except that it is NOT a serious manufacturer, but rather a vulgar company that poses as a manufacturer and sells Chinese tiles at exorbitant prices? It is preferable to go to a chain in the center of Barcelona to buy quality tiles