Your MuchBetter balance is not stored on your card, but in the wallet, which the ATM cannot access. You can always check the app to see your balance.
Note: The use of MuchBetter cards and wearables is temporarily out of service. Unfortunately, MuchBetter cards or wearables cannot be activated in the app for now, nor used for purchases or ATMs. However, you can keep it with you safely and we will confirm when you are able to proceed with activation or its use.