How do I provide feedback and suggestions to improve the app? NTUC Link You may write to us via the Plus! app "Contact Us" button in the "Accounts page". Related articles My LinkPoints are not credited. What should I do? How do I know if I am holding an in-store issued Plus! card? Can I hold multiple Plus! cards? The mobile app is not responding - who should I contact? Card Replacement - What should I do if my Plus!/ NTUC Plus! card is damaged, lost or stolen?