You can check your transaction history in TNG eWallet .
Step 1 : Tap on the Transport icon on the home screen
Step 2 : Tap on the TNG Card icon
Step 3: Choose the card you want from the carousel and the transaction history will be displayed at the bottom of the card list
Note that it might take up to 24 hours for all your transactions to be reflected.
Alternatively, you can check your Enhanced TNG card balance via MYTouchnGO portal.