Reference to electric mirrors in the ad. that you saw might have been referring to electric adjustment of the mirror glass rather than the electric folding function.
According to ‘equipment availability’ section in the brochure at the link below (a 2015 brochure), the electric folding mirror function was only standard on the Cupra model, an extra cost option on certain models as part of a bundled options pack but it wasn’t available on the Toca. Electrically adjustable and heated door mirrors were standard on all but the entry level ‘S’ model.