only installed for days, and wrong payment deducted even though transactions were indicated as failed (shuttlebus fares) on the spot, by the driver. how many people actually check transaction history? some are not even updated in real time! but at least 1 day later.....now its so troublesome to get back just a small amount. and once added, you CANNOT remove your card in the app, which is a huge security issue. DO NOT INSTALL! DO NOT INSTALL! DO NOT INSTALL! you have been warned.