The use of the MuchBetter card or keyring can easily be restricted by tapping the Freeze option in the Card tab in the MuchBetter app. When the card/wearable is frozen it will be disabled from use.
Freezing your card:
Section: Card --> Subtab: Card --> Freeze
Freezing your keyring & other wearables:
Section: Wearables --> Freeze
In order to unblock them, just press "Unfreeze" on the same screen. The possibility of freezing your card or keyring is an excellent way to restrict them in case they are lost or are suspected to be stolen. If you find them again, you can easily unblock them and do not need to order a new one.
If you do not have access to your app, please email support@muchbetter.com or contact us via the app and we will suspend it for you. Please email us again if you want to reactivate the device.