What should I do if I want to terminate my NTUC Plus! Visa Card? Please contact OCBC's 24-hour Customer Service Hotline at 1800 363 3333. Related articles I have multiple Link Rewards cards. Can the Linkpoints earned from various cards be accumulated into one Link account? I have terminated my NTUC Union membership. Can I still retain my NTUC Plus! Visa Card? Can I hold multiple Link Rewards cards? What should I do if my Link/NTUC card is damaged, lost or stolen? How do I apply for a card?