Can I pay for my purchases at NTUC FairPrice with my NTUC Plus! Supplementary Card? Yes. You can use your NTUC Plus! Supplementary Card to pay for your purchases at NTUC FairPrice. Related articles As an NTUC Plus! Supplementary Credit Cardmember, can I redeem Linkpoints? Where can I get the NTUC Plus! Supplementary application form? What are the different features between the NTUC Plus! Principal Card and the Supplementary Card?