What should I do if my TNG card is damaged/faulty? 12 August 2021 07:11 Please submit a refund request via e-Refund or on our e-Customer Service here. Related articles I no longer use my TNG card but there is still some balance in it. What do I need to do? I lost/someone stole my TNG card. What can I do? What is the expiry date of my TNG card? What should I do if I have more questions? Does my TNG card have a warranty period?