Hello @Banelembon,
Please be advised that you cannot delete account tiles, you will have to remove the Dashboard to remove account tiles. After logging onto the app, the Settings "more" on the bottom right of your screen display. Select Settings on the taskbar. All your dashboards will be displayed in this section. You can add or delete dashboards from here by selecting the one that you require. Note: You can also edit the name and upload another photo from here.
Should you wish to delink your card from the mobile banking app altogether, you will need to visit your nearest branch or contact customer care on 0860 123 000.
Kind Regards,
Mandy