Sonae Sierra launches Surprise Card Sonae Sierra has just launched the Surprise Card, a prepaid gift card that can be used as a means of payment in 1200 shops adherents which are currently available in 21 shopping centres, including CascaiShopping. Publication 16 April 2015 PARTILHAClick to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)