your card has expiry date.

you can check its expiry date when you add the tng card in your tng ewallet app. need serial number for registration,which you get from the receipt when you reload

even tng on MyKad has expiry date. but idk what will happen after
how much is the transfer fee?

tng card comes with expiry date once u receive it. turn to the back. usually it is 10 years.

i spend until almost rm 0 and just throw the card and get a new 1.